Elevate is the ideal ramp for doorways that are not perfectly even or where the rise is not an exact match to normal threshold ramps. There no longer is a need to hope that the threshold ramp you are ordering will fit. Now, order the appropriate height, and adjust it for a perfect fit. The adjustable "feet" feature a heavy-duty 3/8" diameter stem. Designed for doorways that swing out or in and sliding glass doors. Adjustable to fit range of threshold rises. Adjustable to the perfect flush level. Great for older homes with uneven thresholds. Strong, lightweight ramp provide great traction for indoor and outdoor use. Two widths available - provides excellent stability fitting all wheelchairs and power scooters. Aligns flush, directly against the door. PVI builds their ramps in Nebraska with the highest quality aluminum allowing for a 600 lbs weight capacity and lightweight portability compared to Chinese manufacturers who use inferior aluminum and weaker welds.