Wide Application: Shore D durometer is tester for measuring hardness. It is suitable for hard hardness Rubber and Plastics such as flooring, tire, thermal plastic, bowling balllMeasuring Range:0~100 HD and Indentor Running : 0-25mmSpecification:30Included Angle, Cone point ( 01mm), 05H ResolutionMeasurement Standard: Shore D Hardness Durometer carrys out the provision of GB/T531-99,GB2411-80, HGT 2489-93 and JJG304-2003.Colour: BlackMaterial: MetalPackage Contents:1 * DurometerOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.