A new and improved structural design combined with super strong material makes the RhinoRamps as strong as any other ramps on the market resin or metal. The unique nestable design saves garage space when not in use. The integrated Core-Trac non-skid feet reduce sliding during use while an improved tread pattern and wide design make these the most secure ramps on the market. The ramp design also works for low profile vehicles a feature many other ramps don't have!