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Features: Use: Strip box dynamometer for teaching in primary school Structure: It is mainly composed of shell, spring, panel, pointer and so on. Strip box dynamometer is a series of products. Before use, you need to zero. If the scale is not accurate, you need to adjust the stiffness coefficient. Zeroing is divided into horizontal zeroing and vertical zeroing. Scale value: 0.5kg= 5N (min scale 0.2N) Specification: Brand: KEPU Model: 14002 Material: Metal, Plastic Maximum range:5N Minimum scale:0.1N Size: 15*3.5*2cm Package includes: 1 * 5N Bar Box Spring Dynamometer