🚀 Build, Learn, and Play—Where Imagination Takes Flight! No batteries or complicated setups—just pure building fun! Empower your child's imagination with 500 colorful K'NEX pieces! An ideal present for birthdays or holidays that sparks creativity. 30 engaging 3D models to enhance problem-solving and spatial skills. Perfect for kids aged 7+, blending play with educational growth. STEM learning 500 pieces 30 models The K'NEX Wings and Wheel Building Set is a 500-piece educational toy designed for children aged 7 and up. This versatile kit allows kids to construct 30 different models, promoting STEM learning through hands-on creativity. With no batteries required and easy assembly, it's the perfect gift to inspire young engineers and problem solvers.