This fort building kit is made of high quality solid plastic, the plastic poles fit easily and securely into the attached spheres, durable, easy to assemble and quick to disassemble. Kids can have fun making sets, building tents, pirate ships, caves, rockets, castles, igloos, teepees, castles, and other hideouts. Build anything they want to create for indoor and outdoor events. This fort building set offers a great way to help boys and girls master basic engineering skills and unleash their imaginations while having lots of fun. Made of strong and high-quality ABS plastic, simply insert and screw the rod into the ball, the builder can attach it in seconds and remove it easily without causing the structure to collapse. Comes with a storage bag, suitable for indoor and outdoor activities. The perfect creative toy for 2-4 or more children. Kids plan and solve problems together, build different creative structures, perfect educational toy gift for birthdays, holidays, Christmas, Halloween, New Years! Material: ABS Color: Square Green Orange, Square Blue Orange, Round Green Orange, Round Blue Orange(optional) Package Size: 42 x 6.5 x 22.5cm Weight: 120g Package List: 1 x 68Pcs Kids Fort Building Kit