@GB High-quality titanium alloy material: Titanium alloy is only 60% of the density of steel, which means this strap is lighter than steel straps of the same size. Our titanium strap will show high strength, rigidity and light weight. You will love it. Only the clasp is made of stainless steel, since titanium is not the best material. Wrist Circumference: Fits wrists 6.89" - 8.46" (170mm-215mm). The WatchUltra case itself is titanium, and with the titanium strap we designed, a complete set of titanium watches. VACUUM COATED TREATMENT: This strap is designed for elite men to add to your glamour. The edges are smooth and won't damage the sweater. Comments: 1. Due to the different monitor settings and different ambient light, the picture may not reflect the actual color of the item. Thank you for your understanding. 2. If you have any questions about the product, please contact customer service as soon as possible, you will get a satisfactory after-sales solution 3. Due to platform regulations, the color display is incomplete, if you need other colors or widths, please contact customer service Note: This link only sells replacement straps, not smart watches, the watches are for display only Dispatch: 1. Orders will be shipped in 1-3 business days upon receipt of payment. 2. It will take long time to arrive by airmail. If you don't want to wait that long, choose the Express Standard. 3. We will only follow your address and buyer's name in the ESCROW payment for the shipment. Please make sure your address is correct. Guarantee: Forwrong shipped items, please contact us. We resend you the correct ones Or refund to you. Please do not open dispute without communication, We are sure to solve any problem for you.