Spring Scales, Clear Plastic, 250g/2.5N, 5g/0.5 N Graduations, Blue, Each

Details

This economically designed spring scale (or dynamometer) features a clear tube, allowing a clear view of its inner workings. The elongation of the spring corresponds to a specific force, which is noted on the scale. Different spring scales have different spring qualities to reflect the desired maximum load. These color-coded spring scales feature both gram and Newton scales. The top loop and large S hook are made from durable steel. The durable acrylic tube and sturdy spring are built to last. The top zero-adjustment nut is easy to use. Overall length is approximately 9-1/2 inches, and diameter is 1 inch. Available in a variety of weight capacities, they are color-coded for easy reference. Great for physics demonstrations and experiments.