Heavy duty, 66-120"L (11-20" Rise) adjustable wheelchair ramps help make life easier when it comes to transporting wheelchairs, power chairs, power scooters, and similar mobility devices. TWR-10 includes (2) telescoping tracks, each measuring 7. 5" Inside and 10" Outside. Two 1-13/16" raised side rails help keep wheel chairs and power mobility chairs on the ramp tracks. The maximum 600 lb. distributed weight capacity ramp system, an be quickly configured for use in various lengths from 66"L to 120"L depending on the desired application. An ideal, portable mobility loading solution for almost any flat surface such as 1-4 steps, porches, Minivan and SUV side doors, rear van doors, curbs and more. Featuring a 2. 5" long rubber padded attaching lip to help keep the wheelchair ramps firmly in place during use. Storing TWR-10 wheelchair ramps is just as convenient as setting them up. Each track slides compact to 66"L x 10"W x 2"H and includes a locking mechanism to keep the tracks in place during transport. Includes an integrated soft-grip carrying handle on each ramp to comfortably move each Light-weight 23 lb. ramp track. 66-120" Adjustable Telescoping Wheel Chair Track Loading Ramps * Adjustable wheelchair ramp with a maximum 600 lb. capacity * Two tracks for each set of wheels on a wheelchair or power chair * Non-skid traction surface * 2.5" Long attaching lip with a rubber pad * Fits almost any flat surface including steps, porches, side doors on an SUV/minivan, curbs & more