Mobility Scooters, Surface Slip Resistant and DH UP 8 Chairs, Ramp High 2.5in Rubber Wheelchairs, Spring for 3 Channel Power Silver Threshold with CP514 1HH Models CP514 1HH Models Exceptional Quality: Crafted from 14k 3C gold and is perfect for use both indoors and out this threshold ramp can handle the majority of wheelchairs and power scooters