12mm / 14mm / 16mm / 18mm / 20mm / 22mm /24mm Quick Release Stainless Steel Watch Spring Bars, Pins, Lugs. Size: 12mm 14mm 16mm 18mm 20mm 22mm 24mm. The quick release spring bars must be used with bands which are specifically designed, so the push button lever on the spring bar protrudes through a gap in the strap.
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