Smooth and Safe: The building block is made of plastic, and the surface of it is high-quality, smooth and featured by non-toxic paint to be safe for fun. The product contains 1 bottom plate, 1 base, and 16 building blocks. Material: made of ABS, which is environmentally friendly, safe, healthy. Hand polishing process ensures a smooth, burr-free surface for better playing? Have Fun: You can use the building blocks to create things with shapes. Each time you put together a puzzle, the puzzle will be different. Challenge but Fun: The simple design and bright colors are suitable for stimulating any imagination. Challenge your kids and bring them much fun. The toys help your kids and you relax. Balancing Stones Games: It is perfect for almost all occasions: parties, birthdays, holidays, Christmas and more. It can be played by more than one person, increasing interaction between them. You can display this attractive and colorful educational toy as a coffee table game or as a class reward, etc