Compatibility: Available in 8mm, 10mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 22mm, 23mm, 24mm. Can be used to install watch strap or Clasp
Size Selection: Please measure the watch lug width or the inner width of clasp (refer to figure 5 for details)
Spring Bar Material: Sturdy stainless steel. Diameter: 1.5mm