Isolate It: Sorbothane Durometer Selector Sample Pack - 30, 40, 50, 60, & 70 Durometer Patented Sorbothane Polymer Durometer: 30, 40, 50, 60 & 70 (Shore OO) Absorbs Upto 94.7% of Vibration These five samples allow for firmness and tackiness comparison of our full Durometer range Commercial Grade Anti-Vibration Polymer