Crease Stiffness Tester - is a multi-function stiffness tester, mainly used for measuring cardboard, color box (such as cigarette case o cosmetic box) of the indentation force (that is, 90 crease of the rebound force), can also measure a variety of cardboard Bending stiffness is achieved on the same instrument with two measurements: 15° flexing Degrees and 90° crease stiffness.