Features: Comprehensive Physical Mechanics Experiment Box Set offer 50+ interchangeable components for hands on experiments, great for exploring strength, motion, and energy concepts through rapid assembly. Built with ABS plastic construction, this physical mechanics teaching aid ensures precisely data collection while resisting wear in frequent classroom use. Suitable for students aged 12+, STEM educators, teacher, and homeschooling parent seeks interactive physics mechanics teaching tool. Widely used for classroom teaching demonstrations, school laboratory, or outdoor STEM workshops requiring portable physics lab equipment. Includes step by step experiment instruction guides, enabling systematic practice by using scratch resistant mechanics components. Specifications: Color: Yellow; Blue Component: ABS Plastic, Stainless Steel Size: Approx. 36x22x13cm/14.17x8.66x5.11in Weight: Approx. 1200g Package Includes: 1Piece Physical Mechanics Experiment Box 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