1. Material: stainless steel2. Soft fit without hurting the wrist, comfortable to wear3. Use vacuum plating, not easy to fade, durable4. Easy to assemble, will not cause damage to the watch5. The length of the strap is easy to adjust to fit your wrist6. Flat and straight connector, high matching rate, basically meet the needs of most watches7. Note: The product only has a strap, not the main bodySpecification:1. 16mm: width 16x16mm, length 75+115mm, thickness 4.5-2.5mm, wearing range 12.8-16.5cm2. 18mm: width 18x18mm, length 75+125mm, thickness 5.0-2.8mm, wearing range 13.3-17.3cm3. 20mm: width 20x20mm, length 75+125mm, thickness 5.0-2.8mm, wearing range 13.3-17.3cm4. 22mm: width 22x22mm, length 75+115mm, thickness 5.0-2.8mm, wearing range 13.3-17.3cm