APEX 72" Lightweight Foam Trailer Ramp KitAPEX 72" Lightweight Foam Trailer Ramp Kit 7" Height 5. 5 Approach Angle Set of 2 The APEX 72" Lightweight Foam Trailer Ramp Kit is built for low cars, long trailers, and people who are done gambling with ground clearance. Each ramp is 72 inches long with a 7 inch rise and a shallow 5. 5 degree approach angle that lets serious street builds, track cars, and long overhang coupes roll onto the trailer without scraping. A high density structural foam