68 PCS Building Set Includes - Each fort building kit contains 21 geometrically precise balls and 47sticks, which can be connected to create a big play structures of all shapes and sizes Ideal for 6+ year old kids to use indoors and outdoors. Style selection: polygon and circle Color options: green and blue Enough To Build 2 Play Structures - More sticks and balls can make your childs endless imagination come true. It is enough to build more than two independent structures, very suitable for multiple children to play together. Multiple Play Modes - Kids can use our fort building set to build their favorite cave, play tent, rockets, house, igloo, princess castle, tunnel, etc. They can even add a voila, bed sheet to build their hidden secret game base Easy To Build With Instructions - The precise hole positions make assembly easier, just insert and twist the rod into the ball, and the builder can connect and disassemble easily in a few seconds. The built play structure is firm and stable, so you dont need to worry about structural collapse. In addition, we have also equipped with detailed instructions to make assembly easier. Educational Fort Building Toy - As an award-winning unique creative building toy, not only children can play in it, but parents can accompany children. It enhances the parent-child relationship, helps childrens imagination and logical mind flexibility, to help kids hand-eye coordination.