diff --git a/CHANGELOG.md b/CHANGELOG.md
index 384d298..9935427 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,6 +13,9 @@ each change under the current top section as you work.
 
 ## [1.2.2]
 
+### Added
+- The **Group Classes** block can now be pinned to a single class, under **Classes shown → Class** in the block sidebar (shortcode: `[us_group_classes offering="…"]`). Pick a class and the block shows only that one, so it can be embedded on a page that describes the class. In this mode the class's own description is left out to avoid repeating the page copy — the card shows the schedule, instructor, price, enrolment deadline and the enrol/withdraw controls. Leaving it on **All classes** keeps the full browsable catalog with descriptions.
+
 ## [1.2.1]
 
 ### Fixed
diff --git a/assets/js/blocks.js b/assets/js/blocks.js
index d7d0f60..96cdd1f 100644
--- a/assets/js/blocks.js
+++ b/assets/js/blocks.js
@@ -192,7 +192,7 @@
                 { title: __('Classes shown', 'unsupervised-schedular') },
                 el(GroupClassSelect, {
                     label: __('Class', 'unsupervised-schedular'),
-                    help: __('Show only one group class, for embedding on a page dedicated to it.', 'unsupervised-schedular'),
+                    help: __('Show only one group class, for embedding on a page dedicated to it. That class’s description is left out — the card shows just the schedule, price and enrolment controls.', 'unsupervised-schedular'),
                     value: attributes.offeringId,
                     onChange: (offeringId) => setAttributes({ offeringId }),
                 })
diff --git a/assets/js/group-classes.js b/assets/js/group-classes.js
index 5b9f82d..e770c97 100644
--- a/assets/js/group-classes.js
+++ b/assets/js/group-classes.js
@@ -12,6 +12,9 @@
 
     // When the shortcode/block pins a single offering, only that class is
     // shown, so the page can be embedded alongside a full class description.
+    // The class's own description is then omitted from the card — the page it
+    // sits on already describes the class — leaving the schedule, price and
+    // enrolment controls.
     const singleOfferingId = Number(app.dataset.offering || 0);
 
     function apiFetch(path, options = {}) {
@@ -148,7 +151,7 @@
                 ${whenLabel(o) ? `<p class="us-class-when">${escHtml(whenLabel(o))}</p>` : ''}
                 ${o.instructor_name ? `<p class="us-class-instructor">With ${escHtml(o.instructor_name)}</p>` : ''}
                 ${o.schedule_note ? `<p>${escHtml(o.schedule_note)}</p>` : ''}
-                ${o.description ? `<p>${escHtml(o.description)}</p>` : ''}
+                ${!singleOfferingId && o.description ? `<p>${escHtml(o.description)}</p>` : ''}
                 <p>${escHtml(Number(o.price).toFixed(2))} ${escHtml(o.currency)}</p>
                 ${!enrolledMap.has(Number(o.id)) && isEnrollmentOpen(o) && enrolmentDeadline(o)
         ? `<p class="us-enrol-deadline">Enrol by ${escHtml(formatDate(enrolmentDeadline(o)))}</p>`
diff --git a/docs/features/editor-blocks.md b/docs/features/editor-blocks.md
index 3d5af19..67e520e 100644
--- a/docs/features/editor-blocks.md
+++ b/docs/features/editor-blocks.md
@@ -30,7 +30,7 @@ Four blocks have sidebar (inspector) options:
 | `us-scheduler/student-login` | `bookingPageId` (number) | `0` | Page the "View available lessons" link points to for logged-in visitors, and the post-login redirect target. `0` = the current page. |
 | `us-scheduler/student-login` | `autoRedirect` (boolean) | `false` | Send logged-in visitors straight to the booking page instead of showing the link. Does nothing until a booking page is chosen. |
 | `us-scheduler/student-register` | `loginPageId` (number) | `0` | Page the "Sign in to your account" link points to after a student confirms their email. `0` = the WordPress login screen. Shortcode equivalent: `[us_student_register login_page_id="…"]`. |
-| `us-scheduler/group-classes` | `offeringId` (number) | `0` | Restrict the page to a single group class, for embedding on a page dedicated to that class. `0` = browse all classes. Shortcode equivalent: `[us_group_classes offering="…"]`. |
+| `us-scheduler/group-classes` | `offeringId` (number) | `0` | Restrict the page to a single group class, for embedding on a page dedicated to that class. The class description is then omitted — only the schedule, instructor, price and enrolment controls are shown, so the surrounding page's own copy is not repeated. `0` = browse all classes, descriptions included. Shortcode equivalent: `[us_group_classes offering="…"]`. |
 
 The page selects list all published pages; if a chosen page is later deleted,
 the blocks fall back to their defaults. The group-classes block's class
@@ -78,7 +78,9 @@ placeholder content:
 - **Booking** — `#us-booking-app` with sample `.us-day` / `.us-slot` rows and
   disabled Book buttons.
 - **Group classes** — `#us-group-app` with a sample `.us-class` card and a
-  disabled Enrol button.
+  disabled Enrol button. When `offeringId` pins a single class the preview
+  drops the sample description, matching what the live page renders in that
+  mode.
 - **Login** — the real `templates/frontend/login-page.php` template (it has
   no request-state dependencies).
 - **Registration** — a disabled sample of the `.us-register-form` fields.
diff --git a/docs/features/group-classes.md b/docs/features/group-classes.md
index fb31d29..8f81309 100644
--- a/docs/features/group-classes.md
+++ b/docs/features/group-classes.md
@@ -176,7 +176,7 @@ class becomes enrollable for them — they choose whether to enrol.
 - Model: `Unsupervised\Schedular\GroupClass\Enrollment`
 - Admin controller: `Unsupervised\Schedular\GroupClass\GroupClassController` — `renderPage` (studio admin per-class summary, `view_all_lessons`) and `renderInstructorPage` (instructor summary + `?class_id` roster detail, `view_own_lessons`)
 - REST endpoint: `Unsupervised\Schedular\GroupClass\EnrollmentEndpoint`
-- Frontend: `Unsupervised\Schedular\GroupClass\GroupClassPage` (`[us_group_classes]` shortcode; `offering="…"` restricts it to a single class for embedding on a dedicated page — the block equivalent is the `offeringId` attribute)
+- Frontend: `Unsupervised\Schedular\GroupClass\GroupClassPage` (`[us_group_classes]` shortcode; `offering="…"` restricts it to a single class for embedding on a dedicated page — the block equivalent is the `offeringId` attribute). In single-class mode `assets/js/group-classes.js` leaves the class description out of the card, since the page it is embedded on already describes the class; the schedule, instructor, schedule note, price and enrolment controls are still shown.
 - Reuses `Registration\RegistrationGate` (intake answers + booking-scoped policy acceptance, type `enrollment`)
 
 > **Payment:** a priced enrolment creates a payment via `Payment\PaymentService`
diff --git a/src/BlockPreview.php b/src/BlockPreview.php
index cc8173a..88b4bd0 100644
--- a/src/BlockPreview.php
+++ b/src/BlockPreview.php
@@ -58,13 +58,29 @@ class BlockPreview {
 		);
 	}
 
-	public static function groupClasses(): string {
+	/**
+	 * Sample group-class card.
+	 *
+	 * @param bool $singleClass Whether the block is pinned to one class, in
+	 *                          which case the live page omits the class
+	 *                          description and the preview does too.
+	 */
+	public static function groupClasses( bool $singleClass = false ): string {
+		$note = $singleClass
+			? __( 'Editor preview — the published page shows the chosen class with its live schedule and enrolment status.', 'unsupervised-schedular' )
+			: __( 'Editor preview — students see live group classes on the published page.', 'unsupervised-schedular' );
+
+		$description = $singleClass
+			? ''
+			: '<p>' . esc_html__( 'A sample class shown so the page can be styled.', 'unsupervised-schedular' ) . '</p>';
+
 		return sprintf(
-			'<div id="us-group-app">%s<div id="us-group-list"><div class="us-class"><h3>%s</h3><p>%s</p><p>%s</p><p>25.00 CAD</p><button type="button" class="us-enrol-btn" disabled>%s</button></div></div></div>',
-			self::note( __( 'Editor preview — students see live group classes on the published page.', 'unsupervised-schedular' ) ),
+			'<div id="us-group-app">%s<div id="us-group-list"><div class="us-class"><h3>%s</h3><p class="us-class-when">%s</p>%s<p>25.00 CAD</p><p class="us-enrol-deadline">%s</p><button type="button" class="us-enrol-btn" disabled>%s</button></div></div></div>',
+			self::note( $note ),
 			esc_html__( 'Beginner Group Class', 'unsupervised-schedular' ),
 			esc_html__( 'Saturdays 10:00 AM–11:00 AM', 'unsupervised-schedular' ),
-			esc_html__( 'A sample class shown so the page can be styled.', 'unsupervised-schedular' ),
+			$description,
+			esc_html__( 'Enrol by Sep 6, 2026', 'unsupervised-schedular' ),
 			esc_html__( 'Enrol', 'unsupervised-schedular' )
 		);
 	}
diff --git a/src/BlockRegistrar.php b/src/BlockRegistrar.php
index 4da5240..dc364b2 100644
--- a/src/BlockRegistrar.php
+++ b/src/BlockRegistrar.php
@@ -160,7 +160,11 @@ class BlockRegistrar {
 	 * @param array<string, mixed> $attributes Block attributes.
 	 */
 	public function renderGroupClasses( array $attributes = [] ): string {
-		return $this->isEditorPreview() ? BlockPreview::groupClasses() : $this->groupClassPage->render( $attributes );
+		if ( ! $this->isEditorPreview() ) {
+			return $this->groupClassPage->render( $attributes );
+		}
+
+		return BlockPreview::groupClasses( Val::int( $attributes['offeringId'] ?? 0 ) > 0 );
 	}
 
 	/**
diff --git a/tests/Unit/BlockPreviewTest.php b/tests/Unit/BlockPreviewTest.php
index 165d17f..b0e597b 100644
--- a/tests/Unit/BlockPreviewTest.php
+++ b/tests/Unit/BlockPreviewTest.php
@@ -29,6 +29,17 @@ class BlockPreviewTest extends TestCase
         self::assertStringContainsString('class="us-class"', $html);
         self::assertStringContainsString('class="us-enrol-btn" disabled', $html);
         self::assertStringContainsString('us-editor-note', $html);
+        self::assertStringContainsString('A sample class shown so the page can be styled.', $html);
+    }
+
+    public function testSingleClassGroupPreviewDropsTheDescriptionButKeepsScheduleAndEnrolment(): void
+    {
+        $html = BlockPreview::groupClasses(true);
+
+        self::assertStringNotContainsString('A sample class shown so the page can be styled.', $html);
+        self::assertStringContainsString('class="us-class-when"', $html);
+        self::assertStringContainsString('class="us-enrol-deadline"', $html);
+        self::assertStringContainsString('class="us-enrol-btn" disabled', $html);
     }
 
     public function testLoginPreviewIncludesTheRealLoginTemplate(): void
diff --git a/tests/Unit/BlockRegistrarTest.php b/tests/Unit/BlockRegistrarTest.php
index 2c402ab..2013110 100644
--- a/tests/Unit/BlockRegistrarTest.php
+++ b/tests/Unit/BlockRegistrarTest.php
@@ -179,6 +179,19 @@ class BlockRegistrarTest extends TestCase
         self::assertStringContainsString('us-group-app', $this->registrar->renderGroupClasses());
     }
 
+    public function testEditorPreviewOfAPinnedGroupClassOmitsTheDescription(): void
+    {
+        $this->registrar->preview = true;
+        $this->groupClassPage->shouldNotReceive('render');
+
+        $all    = $this->registrar->renderGroupClasses();
+        $single = $this->registrar->renderGroupClasses(['offeringId' => 12]);
+
+        self::assertStringContainsString('A sample class shown so the page can be styled.', $all);
+        self::assertStringNotContainsString('A sample class shown so the page can be styled.', $single);
+        self::assertStringContainsString('us-enrol-deadline', $single);
+    }
+
     public function testIsEditorPreviewIsFalseOutsideRestRequests(): void
     {
         // REST_REQUEST is undefined in the test process, so the real