"Air Ride For Your Hands!" The Avon Air Cushion Anodized Spike grips feel great and are very functional too and now heated. Manufactured in the USA with a special core bar that creates air pockets inside the grip body. These air pockets dampen vibrations, help eliminate the tingle in your hands and soften the overall feel of the ride. The soft serrated texture on the grip surface helps you hold on to your bike with no-slip confidence. The grips are finished off with only the best - black anodized aluminum spike end caps and collars. Fits HD Push Pull & Fly By Wire. Inside length = 4.600" OD = 1.625". We have worked hard to create the best feeling V-Twin grips for both warm and cold riding conditions. Sold in pairs.