Feature●HARDNESS: These are available in 30, 50, and 70 durometers. The softer durometers have lower weight load ratings.●VERSATILE: Rated to isolate 40 to 85 lbs per disc●USES: They can be used as feet, stops, spacers and protectors in many different applications and industries.●QUALITY: The unique urethane material wont crack, dry, scratch or mar surfaces and comes with a durable Sorbothane surface to maintain their structural integrity.●INSTALLATION: Simply position the Sorbothane vibration isolation circular pads and press it into place.Description