Complete 180 Pcs Fort Building Toys - The fort kit comes with 100 pcs long rods, 35pcs durable connector balls, 6 pcs 6 channel connectors, 9 pcs 5 channel conntectors, 6 pcs 4 channel conntectors, 14 pcs 3 channel conntectors and 10 pcs 2 channel connectors. The enough quantity allows children to build castles of various shapes. Fun Building Toys For Boys & Girls - The kids just attach the poles to the kid-friendly connector balls to create any fort they imagine, like the Castles, Tunnels, Play Tent, Rocket, Tower. You can use the connector to connect the pole and pole to make it longer if necessary. Multi connection points allow kids' imagination to flourish. Plus a step-by-step guide that shows you how to build the fort of your dreams. STEM Toys - Designed to enhance your children's Science, Technology, Engineering, and Math skills. The building toy set will teach the kids to physically build and talk mathematically about 3D shapes- the poles are edges, the connectors are vertices, and you can create all sorts of prisms and pyramids and compounds 3D shapes. While building, the kids need to figure out which connector is around, they will learn how to solve the problems. Upgrade Connection Design - We designed a new connector ball and poles with a click mechanism, which can ensures secure connected and easy to assemble. It's easy to assemble - no great force needed - and easy to pull apart when we're finished. The patented connector makes the fort structure will be very strong, the kids can cover it with a sheet or blanket for hours of fun. Safe for Kids - Each piece of the fort is made from high-quality, toxic-free, and lead-safe material, sturdy and durable, with the top standards to ensure the safety of the children. Give as a birthday and holidays (Children's day, Christmas, Halloween, Thanksgiving & New Years) present for kids age 4,5,6,7,8,9,10 years old.