Features: Unleashing your children creativity and logical thinking with this Gear and Pulley Educational Assemble Toy Set, inspire kids minds through interactive play. Crafted from pp, easy to assemble, comes with detailed instruction manual, easy to assemble, ensuring long time educational fun. Suitable for children, preschooler and student aged 5 ＋, teachers, and parents, especially those interested in mechanics and science engineering experiment. Widely used for parent-child interactive activity, school science lessons, and extracurricular interest groups, making learning fun and interactive. Enhancing educational experiences with this classroom teaching tool that combines hands on learning with scientific exploration, essential back to school supplies. Specifications: Component: PP Color: Redness Yellow Size: Approx. 16.5x7cm/6.5x2.76in Weight: Approx. 40g Package Includes: 1Set note: 1.Please allow 0-1cm error due to manual measurement. Be sure you donot mind before bid. 2.Due to difference between different monitors, the picture may not reflect the actual color