Meccano Tactical Copter Model Building Set, 374 Pieces, For Ages 10+, STEM Construction Education Toy TAKE TO THE SKIES - Highly-detailed helicopter measures 11 long x 5.5" wide x 4.5 tall with rotating, foldable rotor, retractable landing gear and a working winch. OPEN ENDED CREATIVITY - Remodel your chopper into a fully functional performance glider. Then, customize it to invent a revolutionary new vehicle capable of anything your imagination allows! STEM DEVELOPMENTAL BENEFITS: As kids connect the different parts together and discover how the building system works, theyre strengthening hand-eye coordination, fine motor skills, problem-solving skills, while exercising their imagination! For ages 10 and up. No batteries required. Includes: 370 Parts, 2 Real Tools, 1 Instruction Sheet