Due to State and Federal Law, we sell Syringes and Needles only to the Medical Facilities. SIZE: Large * Calf 13" - 16" , Thigh 20" -25" * Medicare approved knee orthosis L-1832 and L-1847 * Double upright hinges for non-fixed contratures * Indexed hinge controls ROM * Dynamic and static settings * 3rd Point Patella adjustment piece (included at no extra charge) * Easy on/off; high patient compliance * Stabilize knee/control ROM increase *