10pcs 24121 Technical Parts Gear Rack 1/4 Circle 11 x 11 35 Teeth MOC Building Blocks Technology Sets Accessory Toys for C

Certificate Number : no Is Electric : No Battery 3C : Certificate Block Size : Small building block（Compatible with Lego） Barcode : No

Gender : Unisex Plastic Block Shape : Self-Locking Bricks Model Number : 24121 Warning : no Material : Plastic

Recommend Age : 18

Origin: China The overall design of the product takes into account both fun and practicality, and its core functions revolve around "hands-on exploration" and "cognitive enlightenment" to exercise logical thinking and hand-eye coordination.

The size has been ergonomically considered, making it easy to hold and operate, and the moderate weight will not cause any burden in use.