K'NEX &ndash; Combat Crew 5-in-1 Building Set &ndash; 539 Pieces &ndash; Ages 7+ Construction Educational Toy CONTAINS 539 PARTS  The Combat Crew 5-in-1 Building Set contains 539 authentic, colorful pieces with top-grade construction and careful details. Two models can be built at one time. Each package includes gears, bricks, connectors, differently sized rods, dart launchers with darts, motors, wheels, and a combat pilot figure. Pieces can be mixed and matched to turn a childs imagination into a real-life creation. INCLUDES BATTERY-POWERED MOTOR  This set includes a battery-powered motor that works with all models. The motor can switch on the helicopter models main and rear rotor blades or allow the tank to roll on to war. Instead of stationary, hand-controlled toys, the models become fully functional, mobile vehicles that fully immerse children into their own playtime world. 5 MILITARY MODELS  Kids can play out exciting battlefield scenarios at home. The set can be used to create five different military models: an APC, a helicopter, a tank, a drone, and an anti-aircraft vehicle. Children can stage imaginary duels and spend hours engaging in battles on land and in the air with this 5-in-1 set. FOR AGES 7 AND UP  Recommended for children ages 7 and up, this toy set will let students learn while enjoying their playtime. It helps them develop cognitive skills and critical thinking, while supporting imaginative growth. Two AA batteries required (not included). STEAMagination  Its the connection of STEAM (science, technology, engineering, arts & math) with a childs natural curiosity and creativity and it powers the fun of each and every KNEX building set. Building with KNEX puts children on a path towards a fundamental understanding of STEAM/STEM subjects. DEVELOPMENTAL BENEFITS  KNEX supports key areas of a childs developmental growth. As they click the different parts together and discover how the building system works, theyre strengthening hand-eye coordination, fine motor skills, problem-solving skills, spatial awareness and exercising their imagination! COMMITMENT TO QUALITY KNEX rods and connectors are responsibly made in America at a landfill-free, zero-waste green manufacturing facility in Hatfield, Pennsylvania. We test to the strictest quality and safety standards, ensuring that your child has a successful, trouble-free building experience. PARTS GUARANTEE  Broken part? Missing part? If you find yourself in need of a replacement for any reason, just give us a call! Well get you what you need so that your child can get back to building as soon as possible.