Quick Release Springbars Length: 3in/5in 75mm/125mm (not including buckle) Width: 19mm, 20mm, 21mm, 22mm, 24mm Buckle Size: 18mm, 20mm, 22mm Hardware: Stainless steel.Thickness: 3.5 to 5mm.Quick release spring bars compatible with traditional and Seiko fat lug holes included