Recently I was visiting my relatives and there was a guy who was doing the demolition for them. I happened to notice that one of the tires on his trailer was actually flat. I let him know and as he started removing the tire from the two axle trailer I pulled out this device. I've never seen anything like it, but mounting or dismounting tires on two-axle trailers has become a breeze. By pulling the trailer up and over that ramp and placing a good wheel in the notch, the trailer will remain stable, loaded or not, and you can remove the wheel without worrying about or worrying about the terrain. I looked at the product label, googled it and lo and behold it's available on Amazon. Ordered on site. Having previously lived on a fully loaded trailer, I appreciate the convenience and safety that a ramp offers. It doesn't take up much space, but I plan on having a mate weld some elbows at the very front of the trailer, behind the hitch where it's perfect and discreet.