Features: This innovative pulley well science experiment set engages kids in hands on physics learning, fostering creativity and problem solving skills through fun educational play. Crafted from strong , not toxic plastic for safety and longevity, it features an easy to assemble design requiring not complex tools, enhancing autonomous thinking and scientific exploration. Perfect for children of all ages, parents, educators, and STEM enthusiasts, it supports interactive learning in family settings or educational environments. Ideal for home science projects, classroom physics lessons, after school clubs, or STEM workshops, it transforms learning into an enjoyable and dynamic experience. As a versatile educational toy, it sparks imagination beyond basic physics, enabling kids to exploring scientific phenomena creatively through customizable experiments. Specifications: Component : plastic Size: about 190x80x50mm/7.5x3.2x2inch Package Includes: 1xDIY Well Pulley note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.