1 Pair Watch Strap Adapter Watch Accessories18mm To 20mm 22mm,20mm To 18/20/22mm,22mm To 22mm Quick Release Pins Connectors. 22mm to 18mm, 22mm to 22mm. 20mm to 18mm,20mm to 20mm,20mm to 22mm. Size:18mm to 20mm,18mm to 22mm.