Features: Wooden friction board ensures stable, accurately physics experiments with wooden construction, solving plastic deformation issues for school lab demonstrations. Crafted from wood, this friction experiment tool withstands frequent classroom use while prioritizing student safety and educational value. Designed for school physics teachers and students to visualize friction concepts through hands on experiments and interactive group activities. Ideal for classroom demonstrations, lab experiments, or collaborative learning requiring portable, easy to setup physics lab equipment. Versatile physics lab equipment suit for force meters and pulleys to expand mechanics lessons, fostering practical STEM skills through multi experiment applications. Specifications: Component: Wood Color: Wood Color Size: Approx. 49.7x5cm/19.57x1.97in Weight: Approx. 300g Package Includes: 1Piece Wooden friction plate 1Piece Wooden slider 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