Equipped with a scale on a transparent plastic sleeve. Equipped with a scale on a transparent plastic sleeve. Lucid design, including a spring overstretch protection mechanism. Suitable for projection using the overhead projectorForceColorNo.2.5N-250gblueP1022155N-500ggreenP10221610N-1000gbrownP10221720N-2000gredP10221830N-3000gwhiteP10221950N-5000gyellowP120020 TRANSPRENT DYNAMOMETER