Isoblock Silicone Isolation Feet (4 Pack, Soft Block 60Lb Capacity) Non-Adhesive Product Features REDUCE VIBRATION and RESONANCE. Absorbing up to 95.32% of vibration and resonance, Hudson Hi-Fi?s Isolation Feet offer an effective solution for optimizing the true sound of stereo equipment. Isolation Feet effectively reduce vibration for all sensitive equipment. PRECISION CLARITY. Hudson Hi-Fi?s proprietary Platinum Silicone composite is designed to target sub and supersonic micro-vibrations to reduce resonance and further enhance sound. SPECIFICATIONS. Durometer 50 (Shore A) supports 15lbs per pad: Bottom Width is 1.2", Top Width .85", Height .675". Temperature resistance of -40 ~+240 Degrees Celsius. DURABLE EASY TO INSTALL. Just place under your desired isolated component. Silicone preserves its form and does not deteriorate over time. Best of all, it leaves no black residue! No adhesive backing NO RISK PURCHASE 100% SATISFACTION GUARANTEE. Just try our products and if you don?t absolutely love them let us know and we will refund your purchase price NO QUESTIONS ASKED! Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!