Features: Unleashing your creativity and hands on skills with this handmade vernier caliper wood assemble toy set. It helps cultivate curiosity, problem solving skills, and practical knowledge in physics. Children hands on science educational toy building science experiment set suitable for for kid aged 8-12＋, teens and science lover. Crafted with wood, easy to assemble. Measure with this wood vernier caliper, ensuring accurate measurements. Used for measuring lengths, widths, depths, and more. Great for mechanical engineers, woodworking enthusiasts, and students who demand precisely measurements for their project. Package contains: 1Set vernier caliper wood cutout, Screwdriver, crews and Instruction. Specifications: Color: Wood Color Component: Wood Size: Approximately. 20x8cm/7.87x3.15in Weight: Approximately. 45g Package Includes: 1Set Caliper Ruler Model 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