This apple watch band has two size: Small and Large. Small Size - fits 4.7 - 6.3 inches (119mm-160mm) wrist. Large Size - fits 6.3 - 7.9 inches (160mm-200mm) wrist. Please measure your wrist size to choose the comfortable size(Small or Large) and choose the right watch size options(38mm/40mm or 42mm/44mm). This stretch elastic watch band compatible with Apple Watch 40mm/44mm Series 5, Series 4, iWatch 38mm/42mm Series 3, Series 2 1. All Models. Skin-friendly Material?: The wristband are made of 100% Elastic Woven Polyester, Stainless Steel Buckle, lightweight and super comfortable! Stretchy elastic band adds sparkle to your Apple Watch. Metallic thread woven throughout the band gives it a glittery look. Easy Installation and Removal?: The bands for apple Watch comes with watch lugs on both ends, which locks onto iWatch precisely and securely. Easy and direct installation and one button removal. After-sell Service?: We take care of all quality-related issues with new REPLACEMENT or full REFUND without the need to return anything. Please CONTACT US at first time if any problems.