Features: 1. This is a Newton force measuring instrument, with maximum measuring range of 10N. 2. You can also use it to measure the mass of objects within 1kg. 3. Using high quality spring, this force meter can still maintain its measuring precision after many times of use. 4. Standard structure design, easy to operate. 5. Used as basic teaching instrument in physics mechanical experiments. Specification: Maximum range: 10N Material: Plastic, Iron Color: Green shell Length: 15.5cm/6.1in Package weight: Approx. 48g/1.7oz Package list: 1 * Spring Dynamometer Note: 1. Due to the difference between monitors and light effects, the pictures may not reflect the actual color of the item. 2. Please allow slight error due to manual measurement. Thanks for your understanding. 1This is a Newton force measuring instrument, with maximum measuring range of 10N. 2You can also use it to measure the mass of objects within 1kg. 3Using high quality spring, this force meter can still maintain its measuring precision after many times of use. 4Standard structure design, easy to operate. 5Used as basic teaching instrument in physics mechanical experiments.