Product Overview
• Metal uprights give stability by restricting motion of leg
• Double metal rivet to enhance strut stability
• Dense foam lining within the sole to provide comfort and support
• Shock absorbing sole to improve comfort and protects the user from slips
• Intuitive edgeless rocker sole design to simulate a smooth natural gait
• Large air bladder creates a larger surface for contact pressure to help control swelling and ensure a snug fit.
(http://spanlinkintl.com/en/home/122-smy21-short-pneumatic-metal-ec-walker.html)