WOUKUP QUICK RELEASE LEATHER WATCH BANDSAbout band material:this woukup leather watch bands is made of suede leather and calfskinThe buckle is made of 316 stainless steel and the gold and black buckles are vacuum plated which is durable and corrosion-resistant.The graininess of the leather that can be touched is the characteristic of suede watch bandssmooth calfskin on the back and two soft leather straps make it more comfortable to wear.Watch bands widths / Watch buckle widths:-18mm width watch band / 16mm width watch buckle-19mm width watch band / 18mm width watch buckle-20mm width watch band / 18mm width watch buckle-22mm width watch band / 20mm width watch buckleBand length：long part-120mmshort part-80mm(without buckle)Designed to fit wrists 5.7" to 7.48"