Product details:

Wheelchairs, power chairs, and scooters gain smooth, easy doorway access with this adjustable indoor/outdoor aluminum threshold ramp by Prairie View Industries. Suitable for most weather conditions, the highly portable ramp has a grooved surface for enhanced traction and two adjustable casters underneath to fit any threshold from 2-1/2 to 6. Many sizes are available to fit most doorways, and the ramp can support up to 800 lbs.Accommodates rises between 4-in to 8-in for occupied wheelchair and scooter access
No curb design for doors that swing outward
Slip resistant grooved aluminum surface
Adjustable feet to fit a range of threshold heights
36-in wide walking surface made for 36-in doors
Aligns directly against the door threshold
Hardware packet and adjustable feet included