Tuning Fork Clinical Grade Weighted 30 Cps Jobst Opaque Knee 15 20 mmHg Designed to reduce the risk energy and water costs Designed to reduce the risk of Deep Vein Thrombosis (DVT) commonly known as blood clots * Specially designed as a Thrombo Embolic Deterrent stocking JOBST Anti Embolism applies gradient compression highest at the ankle and gradually decreases this pressure up the leg to improve blood flow * It is improved blood flow that helps reduce the risk for DVT * JOBST Anti Embolism Knee Highs and Thigh Highs are for patients who are resting in bed or otherwise immobile (non ambulatory) * JOBST Anti Embolism Knee Highs and Thigh Highs are designed to be worn by both men and women * Accurate gradient compression therapy minimizes the risk of DVT (blood clots) * Soft breathable fabric is lightweight and comfortable * Latex free formula helps avoid allergic reactions sometimes associated with other hosiery products * Reinforced heel is designed for long lasting wear * Calf Circumference: 15 18 * Length from heel to bend of knee: 14 17 Spans entire width of back and can can be operated from either side of the chair * 4 heavy duty 5 casters with positive locking swivel and wheel brakes * Welded powder coated frame has a 5 year warranty * Elastic seat base and adjustable elastic back straps provide the ultimate in comfort * Includes 2 side trays * Model #657 Features: * Both arms drop independently and heavy duty spring pins lock arm securely in place * Exclusive one touch action drops arm securely in place * Chair can be rolled with arm down * Arms drop level with seat for easy transfers * Seat Width: 25 Overall Width: 35 CLINICAL GRADE WEIGHTED * 30 cps weighted *The industry standard tool for evaluating hearing and vibratory sensation *