For Apple Watch Series 3 / Series 2 / Series 1 | 38mm 38-40 Be Unique, Be Original - Put an emphasis on Aluminum case body by adding a Stainless Steel bezel frame to your iwatch Anti Scratch - Double up the protection on sapphire crystal glass with Ringke Bezel Styling cover Comfort & Secure Design - Designed for optimal sizing on existing watch bezels Compatible only with Aluminum, Stainless Steel, Titanium Material Case (Not compatible with Ceramic Material Case) Disclaimer - Repeated removal may lower adhesive performance. Allow up to 12 hours for adhesive to fully set.