Designed to enable users of scooters and wheelchairs to enter and exit through standard or sliding doors with a threshold ranging from 1"–3". Each 34" wide, rust-proof aluminum ramp has a non-skid surface for added safety. For sliding glass or extra-wide doors, two ramps can be placed side-by-side. To choose correct size ramp, measure both the inside and outside of the door entry and refer to sizing chart. Accommodates up to 600 lbs.