- High-Performance: The tire grain design on the bottom provides enhanced slip resistance, strong grip, effective drainage, and efficient exhaust. - Wear-Resistant: Features a built-in steel cushion to reinforce the tips. Offers three times the wear resistance of standard natural rubber. - Designed with a tread pattern similar to a car tire for optimal ground contact. - Excellent adhesion, grip, exhaust, and drainage performance to help ensure user safety during walking. Specification: - Material: Rubber Size Chart: 16mm - Inside Diameter: Approx 1.6 cm / 0.63 inch - Height: Approx 4.5 cm / 1.78 inch - Bottom Width: Approx 3.5 cm / 1.38 inch 19mm - Inside Diameter: Approx 1.9 cm / 0.75 inch - Height: Approx 5 cm / 1.97 inch - Bottom Width: Approx 3.6 cm / 1.42 inch Package Includes: 4 Pieces Rubber Crutch Tips Note: Size measurements are taken manually and may vary by 01 cm, which is considered normal. Due to differences in monitor displays, the actual item color may vary slightly from the image. Thank you!