Silicone Mobile Phone Earplug 1. Weather resistant. 2. High quality,good performence. SpecificationsSilicone Mobile Phone Earplug 1. Weather resistant. 2. High quality,good performence.Silicone Mobile Phone EarplugMaterialSBR, Neoprene(CR), Nitrile(NBR), Natural Rubber(NR), EPDM, Silicone, FKM, HNBR, IIR, ACM etc.Hardness50-80shore ATemperature-60c-+180cCharacteristicsHigh/low temperature- ...