OVERVIEW Butterfly Buckle Band fits 140–280mm wrists. Double Pin Buckle Band fits 140–250mm wrists. The set adopts a split design, and the strap and case are detachable and separate. The set doesn’t affect the water resistance of the Watch. The set doesn’t affect the ECG function of the Watch. The Watch appears in the picture only to better show the product and its compatibility, the product excluding the Watch. TECH SPECS Case Material: Alloy Band Material: 316L Stainless Steel Lugs Material: 316L Stainless Steel Buckle Material: 316L Stainless Steel Buckle Type: Butterfly Buckle/Double Pin Buckle COMPATIBILITY Watch Series 40/41mm Watch Series SE/4/5/6 – 44mm Watch Series 7/8 – 45mm Watch Series Ultra – 49mm WHAT’S IN THE ORDER 1 x Band With Case One-Piece Set 1 x Gift box 1 x Instructions for use ✈ SHIPPING POLICIES ✈ WHY US? We work directly with manufacturers all over the world to ensure the best quality of our products. We have a Quality Control department which helps us to keep our promise! Price is always competitive. Awesome Customer Service Amazing products along with High Quality Read reviews from our lovely customers OUR GUARANTEE 📦 Insured Worldwide Shipping: Each order includes real-time tracking details and insurance coverage in the unlikely event that a package gets lost or stolen in transit. 💰 Money Back Guarantee: If your items arrive damaged or become defective within 15 days of normal usage, we will gladly issue a replacement or refund. 🔒 Safe & Secure Checkouts: We use state-of-the-art SSL Secure encryption to keep your personal and financial information 100% protected.