Apple Watch Stainless Steel Retrofit Cover

316L Stainless Steel： 1. 316L stainless steel is a high-purity stainless steel material commonly used in the manufacture of high-end watch covers. This material has excellent corrosion resistance, effectively preventing the erosion of acidic or alkaline liquids or oxidants. It also has excellent strength and toughness, able to withstand high pressure and impact. 2. The surface of 316L stainless steel watch cover is smooth, beautiful and has strong wear resistance. It is usually equipped with advanced waterproof function, able to withstand water pressure, suitable for high-intensity environments such as diving or submerging. 3. In addition, 316L stainless steel watch cover is also environmentally friendly, free of harmful substances, and does not cause harm to the human body. Therefore, 316L stainless steel watch cover is the preferred material for high-end watches and sports watches. Fluorine Rubber Strap: 1. Chemical resistance: Fluorine rubber is highly resistant to chemicals, making it a great choice for use in environments where the watch may come into contact with harsh chemicals. 2. Temperature resistance: Fluorine rubber is able to withstand high temperatures and will not degrade or lose its properties at high temperatures. 3. Low friction: Fluorine rubber has a low coefficient of friction, which makes it great for use in watches as it will not wear out as quickly as other materials. 4. Durability: Fluorine rubber is a very durable material, it will not crack or break easily and will last longer than other materials. 5. Lightweight: Fluorine rubber is a lightweight material, making it comfortable to wear and won’t add extra weight to the watch. 6. Anti-allergic: Fluorine rubber is a non-toxic material and it is also hypoallergenic, making it a great option for people with sensitive skin. Box Include As Follows： 316L Stainless Steel Case x 1 Fluorine Rubber Strap x 1 316L Stainless Steel Buckle x 1 Back Cover Screws x 10 Band Connecting Pin x 5 Key Protection Sticker Set x 2 Tweezers x 1 Screwdriver x 2