This electromagnetic dotting set includes carbonless paper and a clip, allowing for precise timing and easy recording of experimental data in physics. Made of metal, this complete set of electromagnetic dotting ensures long lasting use and results in physics experiments. Designed for physics students, laboratory technicians, and anyone conducting physics experiments, this set provides a convenient way to accurately measure time and record data. Suitable for educational institutions, universities, and laboratories, this electromagnetic dotting set is perfect for conducting physics experiments and analyzing the collected data. Take your physics experiments to with this versatile electromagnetic dotting set, offering precise timing, easy data recording, and efficient data management. Specifications: Package Weight: .490g Size: .15x15x4cm/5.90x5.90x1.57inch (More Size Detail, Please See Photo.) Colour:As Shown Material:Metal Package Contents: 1 * dottingtimer teaching equipment set Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.