Heelbo Heel Elbow Protectors Blue Md fits to 17 cir.(pr) Step Stools Accurate: The Calibrated©V Lok© system clearly MSHQ 1594XL Accurate: The Calibrated©V Lok© system clearly indicates whether or not the correct size cuff is being used * The center of the bladder is clearly marked on the inner and outer surfaces of the cuff for correct application on either the right or left limb * Hook and loop fasteners are used to provide the optimal number of open close cycles * Comfortable: Cuffs conform to the shape of the limb and have no hard stiff edges Removable washable cover Blue Medium (fits up to 17 cir protectors retain shape after repeated use * Standard protectors include a sewn in comfort pad to prevent sores due to friction and shear * Heelbo Premium gel insert: Viscoelastic polymer pad reduces pressure by up to 38% *