Isolate It: Sorbothane Vibration Isolation Washer 70 Duro (0.5" ID - 1.25" OD - 0.38" Thick) - 4 Pack Reduce Vibration in Sensitive Equipment 1.25" Diameter Washer with 1/2" ID for Fasteners Absorbs up to 94.7% of vibration Load Rating: 17-36 lbs Sorbothane Part Number: 0510045-70