| Citiblocs 300 Piece Wooden Building Set is an intense way to get the passionate builder to build simple, medium-sized and complex structures. This set is perfect for the advanced architect or siblings to share and construct. Building with Citiblocs is simple: just place one block on top of another and gravity holds everything together! The unique size and shape of Citiblocs allows you to build structures that are simply not possible with other building sets. This construction set has 300 high quality precision cut blocks ideal for building towers, houses, animals and more plus a building design guide is included! Build a small cabin by a lake or a tower that reaches the stars your imagination is the limit! Kids can exercise a wide assortment of skills with unique CITIBLOCS such as math and measure, science and design, problem solving and physics! Build low and wide, or stack them high and narrow. Whatever your preference, the Citiblocs 300 piece Building Set will keep the enthusiastic builders flexing his or her imagination while developing fine motor skills. Build alone or in groups! The Citiblocs 300 piece wooden building set is safe, natural and green.