Handheld Dial Durometer Range 10 to 90 Graduations 1 HA Dial Reading 0-100 For Materials Natural Rubber Soft Elastomer Indenter Shape Blunt Taper Operation Type Mechanical Scale Shore A Depth 0.98 in Functions On/Zero Off Data/Hold Height 4.53 in Indenter Protrusion 0.1 in Long Form Calibration Certificate No Standards ASTM D 2240 ISO7619 ISO868 Tip Angle 35 Degrees Width 2.36 in