Features: Optical Motion Demonstration: Turn the side crank to rotate the layered spinner board and show a clear visual illusion effect for science activity tables and classroom demos.
Build Design: The board uses a panel with a visible spiral cutout pattern and hand turned gear layout that gives classroom users a clear structure to observe.
Desk Ready Size: The 14.5cm/5.71inch by 10cm/3.94inch format fits desks, display corners, and activity stations without taking over a full project table.
Hands On Learning Use: This wooden spinner board supports science extracurricular activity, classroom demonstration, and science fair display planning through manual interaction.
Single Board Format: Includes 1 wooden optical illusion gear spinner board for demonstration use, with product language focused on supported classroom and display scenarios.

Specifications: Component:
Size: Approx.14.5x10cm/5.71x3.94inch
Quantity: 1 Set

Package Includes: 1pc Gear Spinner Craft Board Set

note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind before you order.
2.Due to the differences between different monitors, the picture may not reflect the actual color of the item.