Nylon watch straps provide the ultimate combination of comfort and durability. Premium ballistic nylon webbing and silver stainless steel make it comfortable to wear. Advanced laser heat sealed technical makes it smooth and not scratch hands. Also it is WASHABLE and DURABLE.Material: Seatbelt weave nylon, 1.5mm thicknessHardware: 316L Surgical grade stainless steelWidths: 20mm, 22mm1.4mm thickness ballistic nylon strap and buckle fabricated from 316L surgical grade stainless steel. All widths ( 20mm & 22mm ) measure approximately 10.5 inches (270mm) in length not including the buckle and fit wrists from 5" to 8" in circumference