TrekAway Series hitch-mounted wheelchair carrier is easy to secure with minimal use of straps. A steel under frame allows greater weight capacity. Additional features include welded construction for superior strength, 350 lbs capacity, and holds wheelchairs with a wheel diameter between 12" - 24". I bought this new, only used a few times and it works great. Much easier than lifting the wheelchair into the back of my Jeep. You can call my landline or email me a # and I'll call you back. Calls or emails only please! I don't answer emails w/o a #. The price on this is firm!