Jobst Men's 30 40mmHg Closed Toe Thigh High Medium Black Endoscopy Adjustable Flow Regulator Easy to turn knob Paper Towels Adjustable Flow Regulator Easy to turn knob conveniently placed directly below gauge for easy use and control Knob has safety lock feature which will not allow the knob to be twisted off * Natural finish is standard Jobst for Men 30 40 mmHg Thigh High Compression Stockings with Silicone Border a fashionable ribbed design delivers gradient compression therapy yet looks like a men's dress sock *Attractive ribbed design with all day non constricting comfort band keeps socks up without binding or pinching *Flat toe seams and roomy toe section for extra wiggle room *Durable reinforced heel resists shoe abrasion *Anti bacterial additive reduces unpleasant sock odors *Special soft micro and multifiber yarns keep feet cooler and dryer *Machine wash in a mesh laundry bag or hand wash with warm water using a mild soap or detergent designed for compression stockings *Machine dry on low heat *Latex free 71% nylon 25% spandex 4% silicone *Medium *Black *30 40 mmHg (CCL 2) Very Firm Gradient Compression Indication Guide: *Chronic venous insufficiency *Deep vein thrombosis *Post thrombotic syndrome *Severe varicose veins *Severe edema lymphedema *Venous ulcer *Lymphedema *Orthostatic hypotension *Postural hypotension *Helps Prevent DVT (Deep Vein Thrombosis) *HCPCS Code CPT Code: A6534