The heavy-duty steel frame has a weight capacity of 400 lbs.. A loop-lock system allows user to easily slow down or stop the McKesson four-wheel rollator.. Swiveling 8-inch casters ensure smooth movement.. The seat and backrest have polyurethane construction to keep users comfortable.. A vinyl storage pouch is accessible by folding seat up.. Orthotic handles prevent user's hands from becoming fatigued.. The folding red rollator collapses for storage using a folding hinge.. . WARNING: This product can expose you to di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.