Made with Breathable, Top Grade First Layer Genuine Calf Leather Black with black stitched Brown with brown stitched Black with white stitched Brown with white stitched High-Quality Pure Solid 316L Stainless Steel Silver Single Press Butterfly Clasp Features: 1. Only the best and high-grade materials were selected and processed under strict quality controls. We use high-quality top layer Genuine leather for this strap which owns its silky shine through matte finish. Moderate padding and premium leather provide maximum breathability, comfort and style. 2. With tool and 2pcs Spring Bar and box Packing: Easy to swap watch straps in seconds. 3. It's classical design style and made for your luxury watches. It can be applied to watches with standard straight lug ends, such as Tissot, Longines, IWC, Rolex, Mido, Omega, Armani, Cartier, DW, Tudor, Movado, Rado, Hamilton, Titoni, Certina, Calvin Klein, Swiss Military, MontBlanc, Girard-Perregaux, Carl F.Bucherer, Armani, Kronsegler, Jaeger, Invicta, Zenith, Ranceas, Timex, DAVOSA, Oris, etc. 4. Every watch band has a width number, which can help you to choose the correct watch strap. Specification: Band materials: Top layer Genuine Leather Butterfly clasp material: Stainless Steel Band Color: Black, Brown Butterfly clasp Color: Silver Pattern: Bamboo grain Size: 16mm,18mm,19mm,20mm,21mm,22mm Package includes: 1 X Genuine Leather Watch Strap 1 X Watch Band tool 2 X Lugs