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 sizesIdeal for 6+ year old kids to use indoors and outdoors.Style selection: polygon and circleColor options: green and blueEnough To Build 2 Play StructuresMore sticks and balls can make your child's endless imagination come true. It is enough to build more than two independent structures, very suitable for multiple children to play together.Multiple Play ModesKids 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 baseEasy To Build & With InstructionsThe 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 don't need to worry about structural collapse. In addition, we have also equipped with detailed instructions to make assembly easier.