The Ramp Rack PU-100 system is a removable insert that fits 1500-3500 pickups—long and short bed. It increases the usable space of your truck bed with its patent-protected curved dovetail and ramp. The PU-100 system allows you to haul up to two commercial walk-behind, stander or zero turn mowers without the need for pulling a trailer. It is an incredibly convenient transport system that makes loading and unloading 1500-3500 size trucks much easier.