... toolings of o-rings, washers and gaskets3,Color: free choice(black, white, green, red, brown, yellow, purple, pink, translucent, clear etc)4,Certificate:ISO9001 ... shipmentMOQ1000pcsPackaePolybag and cartonSample lead time7 daysOEM/ODMwelcome Rubber white seal red sealWaterproof white seal red sealColored white seal red sealISO9001-2008ProductionWorkshopFactoryIf need more information please feel ...