These Watch Bands are Only Compatible with 42mm Apple Watch Series 1 and 2,3 Band Contains Lugs on Both ends to lock the Watch Securely and Prevent Accidents Classic Pin-Buckle is made with Solid and Durable Stainless Steel. Super easy to remorve the old one and replace with This one. Made with Leather allowing for a unique texture on each band Model Number: IWB-30-42MM Texture, Metal, Bands, Belts, Watch Bands, Apple Watch 42, Apple Watch Series 1, Apple Watch Series, Watches