Highly elastic silicone: This strap is made from highly elastic silicone that is comfortable to wear and does not irritate the skin. Magnetic attraction: The strap uses magnetic attraction to prevent loss of earphones. Anti-fingerprint, washable: The silicone is resistant to fingerprints and can be easily washed with water when dirty or greasy. Waterproof: No worries about sweat during sports activities. Elastic and stretchable: The silicone stretches and does not break easily. Magnetic attraction for convenient storage: The strap can be easily coiled and stored. Precise hole positioning: The strap securely holds the earphones and prevents them from falling out. Compatible models: AirPods 1, 2, 3 generation, AirPods Pro Dimensions: Length: 69.5 cm Cord thickness: 1.9 mm