Carex Crutch Tips X Large Case of 6 Pr Thumb Braces Supports ) Resonant auto tuning technology continually Each germicidal disposable wipe ) Resonant auto tuning technology continually measures and adjusts to changes in the patient's impedance to provide maximum energy transmission resulting in faster heating and shorter treatment times 75 Up Charge) * Relieves pressure at the sacral area while offering patient s comfort and even distribution of weight throughout the cushion * Medium density fire retardant foam is covered in either a poly cotton in your choice of black navy or gray medical grade vinyl Shipping Carton Size: 18 L x 16 W x 5 H Extra Large Crutch Tips 2 pack: These Carex replacement tips are designed to perfectly fit most brands * These Extra Large Crutch Tips fit most crutches and are designed with extra tread and metal reinforcement * These tips are durable and provide skid resistant traction * Extra tread and metal reinforcement for longer wear * Fits most crutches