barton quick release spring bars - choice of widths - packet of four 22mm stainless steel pins barton watch bands each package contains four stainless steel quick release spring bars. simply slide lever with finger to insert or remove from watch. great for nato style straps and as replacements in bands designed for use with quick release spring bars.</br></br> designed to fit watches with lug widths of exactly 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm, 23mm or 24mm. to determine proper width, measure the width between watch lugs at the point where the band attaches or consult manufacturers specifications (typically available online).