Avon Grips Chrome Air-SS with Throttle Assist AIR-99-BOSS The Air-SS incorporates an air cushion system similar to the Air Cushioned grips that will reduce some of the unwanted vibrations, and has the same grippy texture as the original Air Cushion grip. Available in triple chrome plated, or black anodized, billet aluminum ends. Also available in heated version. Heated grips have 4 heat settings indicated by LED lights and include a switch. Inside length 4.60in., OD 1.50in.