Set of six tubular spring scales with different measurement ranges for determining weight and exploring physics principles of force and mass

Scales are graduated in grams (g) and Newtons (N) and are color-coded to distinguish between the ranges

Maximum load is 250g/2.5N for the blue scale, 500g/5N for the green scale, 1000g/10N for the tan scale, 2000g/20N for the red scale, 3000g/30N for the white scale, and 5000g/50N for the yellow scale

Each scale has a ring at the top for hanging, and an S-hook at the bottom for attaching the sample to be weighed

Clear plastic housing allows observation of the extension and retraction of the spring