SEWACC 5pcs Transparent Newton Force Spring Scales with Hanging Tube Design Rust-Resistant Spring Balance for Physics Teaching Aids and Experiments in Classroom Laboratory

Hanging scale--the spring scale is professional and practical, made of premium and light weight materials, can be used for long time,spring scales

Mechanical spring weight scale--long times measurement, dual scale, high-precision reading table, to ensure accurate reading,tubular spring scale

Science spring scale--clear housing design of the hanging tube spring scales allow observation of the extension and retraction of the spring,hanging spring scale

Newton force spring scales--with clear calibration and transparent cylinder design, easy to read markings, different specifications can satisfy your different needs,scientific spring scales

Dual scale spring scale--scales are graduated in grams (g) and newton (n), the scale is clear, can meet your requirements better,cylinder spring scale