This 197 fort building set is made of ABS, come with 56 Pipes, 11 Yellow balls, 18 Green magic balls and 112 Connector. The bright colours stimulate the senses and durable construction allow kids to build anything, such as rocket, tunnel, castles, cave, tower, house, spheroid etc. You can even add a bed sheet or lights to build their hidden game. By constructing their own play tent, fort, cave, tower, castle, play tunnels, and other structures, kids may use this kids tent to improve their hand-eye coordination, imagination, and critical thinking. This DIY fort building set made of premium-grade ABS plastic, this kids building kit is sturdy enough for indoors and outdoors as well, so your children will enjoy building forts of different sizes and shapes with their friends.