50pcs MOC compatible with 3659 building blocks 1x4 arch bricks DIY creative city construction children's toys

High-concerned chemical : None

Is Electric : No Battery 3C : Certificate Block Size : Small building block Barcode : No Certification : 3C Gender : Unisex Plastic Block Shape : Self-Locking Bricks Plastic Type : ABS Model Number : 3659 Warning : no Material : Plastic Brand Name : alibricks Recommend Age : 14+y