3Ft Portable Aluminum Wheelchair Ramp, Non-Slip, 800LBS Capacity, Folding

▶The usable height of the 3FT ramp is 3-9" (maximum height not exceeding 9"). As long as they are used within the specified weight limits, they are safe to use. 【Foldable and portable】: All ramp models are foldable for easy storage and carrying.