Posterior Offset Ring Lock Knee Joint Type Knee Sleeves Size Medium Body Part LEG Brand NS Prosthetic Country of Origin Made in India Characteristics Available in Aluminium and Stainless Steel Axis of Motion is located posterior to the upright bars, thereby closely approximating movement of the anatomical knee. Easily changed to free motion by removing te rings. Available in Aluminium and stainless steel. Additional Information: Production Capacity: 300-500