10pcs 3650 Gear Series DO-IT-YOURSELF Compact Particles Construction Brick Fitting Gear Rotating Platform Gear Differential Gear Rack

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 : 3650 Warning : no Material : Plastic Origin : Mainland China Recommend Age : 18