The MPG907 Axis™ Truck Bed Extender is made of heavy duty steel with a thick powder coat to resist corrosion. It can be used in either the vertical position to create a "rear of vehicle" load bar, or, the horizontal position to extend the bed of the truck
Adding this 8" diameter full size spare tire provides the piece of mind that you will never be stuck on the roadside, or, in the back country with a flat tire.