flat-ringO-rings flatround gaskets of synthetic rubber (black) for water-resistant watches. Each package contains 2 pieces. Products nameoutside-Øinside diameterthicknessitem No.Size 10116.8015.400.50015101Size 10216.9015.700.50015102Size 10317.2016.000.50015103Size 10418.2017.000.50015104Size 10518.7017.800.50015105Size 10619.5017.800.50015106Size 10719.7018.200.50015107Size 10820.3019.200.50015108Size 10920.5019.500.50015109Size 11020.8019.800.50015110Size 11121.3019.800.50015111Size 11221.6020.000.50015112Size 11321.9020.700.50015113Size 11422.2021.000.50015114Size 11522.5021.000.50015115Size 11623.5021.900.50015116Size 11723.7022.300.50015117Size 11824.0022.500.50015118Size 11924.5022.800.50015119Size 12024.9022.100.50015120Size 12125.2023.400.50015121Size 12225.2024.000.50015122Size 12325.5024.000.50015123Size 12426.5025.100.50015124Size 12527.4026.000.50015125Size 12627.7026.200.50015126Size 12728.2026.500.50015127Size 12828.5026.500.50015128Size 12928.6026.900.50015129Size 13028.7527.250.50015130Size 13129.0027.500.50015131Size 13229.5028.000.50015132Size 13330.0027.800.50015133Size 13430.2028.800.50015134Size 13530.4028.500.50015135Size 13630.5029.000.50015136Size 13731.0029.500.50015137Size 13831.3029.300.50015138Size 13931.5030.000.50015139Size 14032.0030.000.50015140Size 14132.3030.500.50015141Size 14232.5030.000.50015142Size 14333.0031.000.50015143Size 14433.0031.500.50015144Size 14533.2031.400.50015145Size 14633.3031.500.50015146Size 14733.5031.500.50015147Size 14833.8031.500.50015148Size 14933.7032.200.50015149Size 15033.8032.000.50015150Size 15134.0032.200.50015151Size 15234.0032.400.50015152Size 15334.2031.800.50015153Size 15434.2032.800.50015154Size 15534.3032.500.50015155Size 15635.0032.000.50015156Size 15735.2033.200.50015157Size 15835.5033.500.50015158Size 15935.8034.100.50015159Size 16037.0035.000.50015160