The Push & Pull Spring Scales are used to measure both the weight of an object and the force of pushing or pulling an object.
They are calibrated in grams (to measure the weight) and Newtons (to measure the force), and have a clear flat area on the rod so, using a dry wipe marker, you can create your own scales.
Each spring scale is colour coded; blue - 250g, green - 500g, brown - 1Kg, red - 2Kg, white - 3Kg and yellow - 5Kg. An instruction and idea sheet is included.
Each spring scale size: 23mm x 294mm