Watch spring bar is a small bar with springs inside that attaches to the lug of your watch. The spring bar holds the watch strap attached to the watch case. Here are two pairs of Quick Release Spring Bars (4 pieces per pack). Just slide the button of these watch band pins; you can simply change your watch band without any tools. Tube diameter 1.78mm pin tip 0.8mm, available size options : 18mm, 19mm, 20mm, 21mm and 22mm.
Item no. : NT-KSAG-178S-XX Description: 4 pieces per pack, packed in plastic seal bag. Size: 18mm, 19mm, 20mm, 21mm or 22mm (please select by options) Diameter: 1.78mm, Tip 0.8mm Color / Finish: Steel Color Material: Stainless Steel