Set of 6 Spring Balance Hanging Spring Scale Set

Be sure you know they're all different from each other. Each one measures a different rate. I made a mistake thinking it was a group of all the same rate tools. I wanted my groups of kids to each use one to measure the same thing but we had to end up sharing. Other than that they are good for a classroom setting to use as a spring scale or measuring Newtons.

Excellent condition for a scratch and dent product (damaged packaging); will work well for school science projects.

Variety of different weight range and quick and timely delivery

These are perfect for school science fair projects, or other 'non-critical' weighing tasks. They appear very well made for the price, and the pack offers a wide measurement range. Make sure to calibrate the spring scales periodically by adjusting the plastic nut - ideally using an 'accurate' calibration weight, but even just 'zeroing' the scales so it reads 0 when unloaded got reasonably accurate results, - within approximately 5% at mid capacity/range of each (which realistically is about as accurately as you can read the graduations on the scales anyway).

works relatively well for lightweight objects, good range provided by the available weight limits of each unit, not accurate enough to write a thesis off of but will give a solid +/- range reading of confidence each time. Works as advertised will measure what it says to within an accurac7y you would expect for the price