The Guardian Rubber Container Ramps create an easy transition to containers with a 6" lip. Each ramp is manufactured from molded rubber with a traction surface, and has a lip that passes over shipping container locks so that they can be positioned anywhere along the container’s edge. Dog bone connectors allow you to easily gang the ramps together if you wish to use them as a curb ramp or with a hand truck. Sold in pairs or sets of four.