Isolate It: Sorbothane Vibration Isolation Square Pad 30 Duro (.50" Thick 4" X 4") 2-pack Reduce Vibration in Sensitive Equipment Superior Vibration Absorbing Urethane Absorbs Upto 94.7% of Vibration Load per pad in LBS.: 400-500 Sorbothane Part number : 0204050