2-in-1 silicone washers kit：you get both high quality 570 PCS 18 size Resist Heat Silicone o-ring kit + 90 PCS 14 Size plumbing Silicone washers kit + with 4 pieces removable pick and hoook set Soft silicone o ring assortment kit application: pneumatics sealing,pressure valve,reaction valve,filter,mechanical gas compressor,heat exchanger, boiler, filter, blender, coffee machine,plumbing,doors and windows,household electrical appliance,electronic instruments and so on Universal white silicone oring kits 18 OD x CS metric size: 5X1mm, 6X1mm, 6.5X1mm, 9X2mm, 10X2mm, 11X2mm, 12X2mm, 13X2mm, 14X2mm, 18X3mm, 19X2.5mm, 19X3mm, 22X2.5mm, 24X2mm, 26X2mm, 26X4mm, 30X2.4mm, 33X3mm. Silicone washer assortment application: sink nozzles faucets aerator, bathtub shower faucet wall mount hand spray hose,garden hose splitter,shower hose wand,various RV faucet pipe,washing machine water supply line strainer filter,outdoor spigot elbows adapter,hot water pipes pressure washer optimize the entire plumbing system repair. Water hose washer 7 OD size: 31mm,25mm/1 inch, 24mm,22mm, 19mm, 15mm, 12mm, 9mm.used to install assorted standard 1", 3/4", 5/8", 1/2", 3/8", 1/4", 1/8" pipe fittings connect.