These high back slim line metal flake solo seats with thin foam padding and covered with metal flake strong sunthetic leather hand stitched cover, High back design of seat adds support and keeps you from sliding while you are on throttle, under acceleration. padding range is 20-25mm for extremely low profile look.comes with special angled spacers for rear mounts in mounting kit. Gel insertion as per customer demand. Spring mounts are 185mm c/c. Post mounts: 85mm c/c. M8 threads, kit comes with nuts and washers, Width at widest point 10″ Length 12.5″ . any customize designs are welcome.