Build your own fully functioning mechanical music machine with multiple action based dynamic gameplays. This toy building kit includes engineered wooden sheets, bands, sound plates, handle pipe, movable pegs (237 total parts) and an easy to understand, self-paced instruction manual with large pictures. This STEM based learning toy encourages up to 150 minutes of screen-free engineering toy building time and can be disassembled and rebuilt. After assembling the xylophone music machine, kids can insert the included music sheets or create their very own masterpiece. This educational kid toy utilizes the basic principles of both STEM and STEAM related learning activities. STEM focused concepts include Projectiles, Motion, Elasticity & Momentum. This STEM / STEAM learning toy is also eco-friendly; made from premium pine wood that is sourced from Eco-Friendly vendors. ASTM, EN-71 Toy Safety Certifications: tested in international toy-testing laboratories to ensure your child’s safety. This patented design is sturdy, durable and non-toxic and trusted by parents and loved by 8-12 year old girls and boys throughout the world. Smartivity is focused on building toys with a purpose. We believe in the power of play, the promise of STEM, and the pride that comes with making things with your hands. Every child has the potential to shape the future, and it starts with the allowing kids to explore the fun world of interactive play while also encouraging cognitive and tactile learning. Our line of build-it-yourself toys empower kids with the intrinsic understanding of STEM fundamentals through play.