Open Toe Knee Stocking Black XXX Large 18mmHg Diagnostics * Telescoping parts are manufactured MSHQ 84306 * Telescoping parts are manufactured with internal bushings and external lock nuts to provide totally silent usage Replacement Caster 4 *Twin Wheel Casters Have Threaded Stem For Extra Security And Safety *MJM's Exclusive Reinforced Caster System Allows Additional Structural Support To Our Entire Product Line Our Positive Engaging Lock Holds The Wheel Securely So There Is No Swivel Movement When Locked *The Unique Design Allows Easy Movement On Hard Surfaces And Helps Eliminate the Wheel From Falling Into Cracks *Soft Non Marking Tread (It Will Not Leave Black Marks Or Leave Groves In Wood Or Vinyl) *Quiet Mobility (Hard Treads Make A Lot Of Noise)*Non Rust Plastic Body And Wheels *High Load Capacity (160 lbs) *Non Slip Tread Anti Embolism Stocking provides a gentle massaging action to help prevent the formation of blood clots associated with post surgical inactivity * Ankle: 12 13´ Calf: 20´ 22´ * HCPC Code A4500