http://www.discountramps.com/folding-pet-ramp.htm
Your pets will get plenty of use out of this dog ramp. These folding dog ramps from Discount Ramps are some of the strongest and sturdiest on the market today! Each ramp has an aluminum construction with heavy duty hinges that allows the dog truck ramps to hold up to 250 lbs. The dog ramp features a grip tape surface platform for superb traction in any weather for almost any pet. These folding ramps are available in two lengths to accommodate any dog or pet. They have a usable width of 15" and a 2 ¾" attaching lip on the top of the dog ramp, allowing it to be used for trucks, SUVs, cars, or nearly anywhere. These dog truck ramps also feature a carrying handle and a strap mounted on the ramps so it can be strapped together in the closed position for easy transport and storage when not in use.
http://www.discountramps.com