The Tracer SX5 from Invacare is one of our most popular wheelchairs. It has several great features such as dual axle positions, 8" solid rubber casters and durable black nylon upholstery. The SX5 Quick-Ship is available in four different seat widths: 16", 18", 20" and 22". The 20" and 22" seat widths have an added weight capacity of 300 lbs. (All widths are 16" deep). The chair also comes with two arm arm length choices, desk length or full length (On select sizes). The desk length arms are shorter and many find they prefer having more room near the front of the chair; others prefer the security of full length arms. Whichever you prefer is the one best for you. To get going all you need to do is select your seat size and arm length combination from the drop down menu, choose footrests or accessories, and you’re ready to go.