Set of (4) standard high quality stainless steel spring bar pins for watch bands. 1.78mm Thickness - Fits most watch bands and watches. Double Flange Spring Bar - Double shoulder design allowing quick and easy insert and removal. Sizing: To determine sizing, first know whether you need the spring bar to attach your watch band to your watch or for a buckle on a watch band. For attaching a watch band, you need the same size spring bar as your lug end or width of your watch band end. For attaching a buckle to a band, you need the same size as your buckle width. Need help? View our handy and printable measuring guide to help determine the millimeter size you need. Details Set of 4 standard high quality stainless steel spring bar pins for watch bands. Material: Stainless Steel Color: Silver Finish: Shiny Model: SPB