Customer Reviews for VEVOR Door Threshold Ramp, 1" Rise, 800 lbs Load Capacity, Door Ramp for Wheelchairs, Aluminum Threshold Ramp for Doorways, Adjustable Modular Threshold Ramp for Wheelchairs, Scooters, Power Chairs
Sturdy, Good Value.
Front flap has about 1/4 inch play to adjust to the height of the floor.
If the flap doesn't slide into the ramp... mine had burs behind the two threaded holes.
Took a rotary tool with a small bit (or use a small round file) and knock them off - parts slid together fine.
Leonardo 
