Archimedes blocks are made of natural wood, suitable for children over 3. With a smooth surface, it ensures that children won't get hurt by burrs. Children can use these wooden blocks to build boats, houses, helicopters, castles, and anything else they can imagine. Collect all the color palettes to complete the collection. Features Children can use these wooden blocks to build boats, houses, helicopters, castles, and anything else they can imagine. Collect all the color palettes to complete the collection. Wooden blocks for kids to play and have fun Package Dimensions: 22.0 x 30.0 x 13.0 cm Weight: 0.55KG Recommended Age: Suitable for 3 years & above