DESIGN FEATURES:Double layer(2.8mm) seat belt nylon and 316L stainless steel buckle, which is breathable and very strong.Quality stitching and laser cutting to maintain strength and reduce wear. PREMIUM MATERIALS:This strap is made of seat belt nylon and is woven in herringbone pattern. Compared with traditional nylon, seat belt nylon is softer, has a smoother surface, better gloss and feel. QUICK RELEASE DESIGN:With the quick release spring bars, without tools, turn on the switch of the quick release spring bar with your finger to quickly swap the watch strap. LEGNTH WRIST SIZE:Long part 117mm, short part 80mm (not including buckle). Suitable for wrists from 5.3" to 7.8". COMPATIBILITY: This Strap has 6 colors and 2 colors buckles to choose from. The 3 widths of 18mm, 20mm, 22mm are suitable for traditional watches and smart watches. WOUKUP QUICK RELEASE NYLON WATCH BANDS

About band material: this WOUKUP nylon watch bands is made of seat belt nylon,The buckle is made of 316 stainless steel, black buckles is vacuum plated, which is durable and corrosion-resistant.

SEAT BELT NYLON is woven in herringbone pattern. Compared with traditional nylon, seat belt nylon is softer, has a smoother surface, better gloss and feel.

Watch bands widths / Watch buckle widths:
-20mm width watch band / 20mm width watch buckle
-22mm width watch band / 22mm width watch buckle

Band length：long part-117mm, short part-80mm(without buckle), Designed to fit wrists 5.3" to 7.8"