High quality material: Comparable to original apple sport band, it made of durable soft silicone, and high quality steel buckle, prevents skin from irritation; Waterproof, sweatproof, lightweight, comfortable to wear. | Various Colors Available:can make your whole outfits more fashionable, and accessorize your new Apple Watch Band Please Note - 38mm/40mm, S/M for 5.1"-7.1" (130mm-180mm) wirst; 38mm/40mm, M/L for 5.5"-7.5" (140mm-190mm) wirst; 44mm/42mm, S/M for 5.9"-7.9" (150mm-200mm) wirst; 44mm/42mm, M/L for 6.3"-8.3" (160mm-210mm) wirst | Install and Removal: Sport bands comes with watch lugs on both ends, which locks onto iWatch interface precisely and securely. Easy for installing directly and removing with one button. | Wide Compatibility: Compatible all watch 38mm / 40mm / 42mm / 44mm models:watch series 4, watch series 3, watch series 2, watch series 1, watch Nike+, Edition, watch Hermes. | Warranty and Quality Assurance: 12-month warranty after the date of purchase, 100% replacement or refund for all quality-related issues. All the bands are doing a strict quality testing, ensure that no harm and provide soft cushioning on the skin.