30pcs/lot Hinge Brick 1x4 Swivel Top/Base Building Blocks 3830 3831 44301 44302 MOC Parts Toys For Kids Compatible Major Brand

Is Electric : No Battery Block Size : Small building block Barcode : No Gender : Unisex Plastic Block Shape : Self-Locking Bricks Plastic Type : ABS Warning : can no eat Material : Plastic Recommend Age : 18+,14+y,6-12Y feature 01 : designer