This Backrest is a cradling backrest and a "Booster" back support. designed to move rider forward 1-4 inches to easily reach foot controls. It fits most Cruiser style seats with no Modifications or labor needed. It simply straps to your passenger strap. It keeps the rider snug in there seat and keeps the lower spine straight and in the correct riding position. Offers Lumbar support (lower back) and Thoracic support (mid back). It allows the rider to lean back and be supported. Passenger strap is required for installation. We sell passenger straps if your seat doesn't have one. All of our backrests install & remove in seconds and stow away easily.