Super lightweight at 13 lbs and it supports over 400 lbs with no bending! Combination aluminum+plastic design make it the lightest & strongest pet ramp on the market. More compact, so it s easier to use and store. Infinitely adjustable from 39 to 72 - use it fully-extended for pick-up/suv or grooming table, etc. The telescoping design is the secret to making this ramp so easy to use. Just slide-it-out to use and slide-it-in to stow. Unique, wavy walking surface with non-slip tread gives pets a sure footing, especially on steep climbs. Metal With Carpeted Surfaces