High-Performance: Sucker designd, non-slip, providing strong gripWear-Resisting: Built-in steel cushion to reinforce the tips. Its wear-resistance is three times more than that of ordinary natural rubber.Adhesion, grip performance are strong,Effectively ensure the safety of the user walks.Large contact area, durable rubber pole tip end , great replacementSpecification:Material: RubberSize Chart:Inside Diameter: Approx 1.3 cm0.5 inchHeight: Approx. 3.2 cm1.3 inchPackage Includes:4 Pieces Rubber Crutch Tips(2 Pack)Note:Size for manual measurement, there may be a 0 to 1 cm error, belongs to the normal phenomenon.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!