Jobst Ultrasheer 15 20 Knee Hi Sun Tan XL (pair) Foot Products Displays 2 Channel Combination * Easy to add modularity 8975 2 Channel Combination * Easy to add modularity allows the addition of two additional channels of electrotherapy light therapy or a battery module * High contrast 5 (13 cm) FSTN LCD monochromatic user interface * Two independent electrotherapy channels expandable to four independent channels * Multiple waveform electrotherapy six clinical waveforms: Interferential Premodulated High Volt Russian Symmetrical Biphasic and Microcurrent * Documentation of treatment data with Patient Data Cards * User defined protocols for your specific needs * Dual frequency ultrasound at 1 or 3 * Inflation Warranty: 3 Years Knee Hi * Sun Tan * 15 20 mmHg * X Large * Ankle Circ 11 1 2 13 Calf Circumference 13 3 8 19 5 8 * Beautifully sheer hosiery Durable long lasting * Sandalfoot styling * Gradient compression for relief and prevention of venous disease * Therapeutically effective sheer lightweight and fashionable *