FLEXIBLE STEM FUN FOR BOYS & GIRLS: The kid's ultimate forts builder kits is designed for child aged 5 and up, they can build a cave, play tent, rocket, house, igloo, princess castle, tunnel, just add a bed sheet to create a hideaway.Let your children create their fantasy world and wander in it for hours! EASY TO BUILD & DURABLE: Made with solid and premium plastic, simply insert and twist the rods into the balls, builder connect in a few seconds and easily disassemble.The pieces will remain securely connected, so you dont have to worry about structures collapsing. Come with a storage bag, portable for indoor and outdoor activities. SPARK CREATIVITY AND IMAGINATION: Perfect creative toys for 2-4 or more childrens to play. Kids working together to plan and solve problems, construct different creative structures, Perfect educational toys gifts on birthday, holiday, Christmas, Halloween, new year! PROMOTES TEAM-BUILDING SKILLS Working with other kids helps promote teambuilding skills and how to work with others. It can even be something the whole family does together, and can be done indoor or outdoor, making this a great group activity.