The Visco-Elastic 4 Bar Prosthetic Knee Joint is best suited for above knee amputees with low functional levels and high safety needs.  The frame is consutrcuted of stainless steel alloy.  The prosthetic knee joint's visco-elastic behavior allows adjustable constant friction control for swing phase.   

The Visco-Elastic 4 Bar Prosthetic Knee is best suited for patients with a low functional level and high safety needs

• Swing Phase:  Adjustable Constant Friction
• Stance Phase:  Mechanical
• Weight Limit:  275 lbs (125 kg)
• Unit Weight:  23.35 Ounces (662 grams)
• 2 Year Warranty