The E.S.R. Kit combines 3 of additional foam with a gripper style seat cover. The additional height eliminates knee and back fatigue and improves control by allowing you to stand more comfortably for powder or bad trails. Installation is easy. Remove your seat (5 minutes), remove the staples holding on your old cover, insert the foam and recover with the new E.S.R. cover and re-install the seat. The ESR (Ergonomic Seat Riser) kit takes you to the next level of comfort and control. Kits combines 3″ of additional pre-cut foam with a gripper-style seat cover.