Lend-A-Hand Extended Assist Rail - 37" overall drop, protrudes from wall 25.5". The AM-533 Extended Assist Rail has the same footprint and bracketry as our standard Lend-A-Hand Rail (AM-200, AM-300, AM-800), saving you from having to drill new holes when changing between these rails.Installation Tip: If mounted on the right side, you may need to add backing for mounting purposes. Our Lend-A-Hand Assist Rails are designed to help you keep and maintain your balance. They will not break your fall.