1.100% silicone cap silicone production 2.harmless to human body 3.highly elastic texture 4.Water-resistant Professional manufactory with High quality + Cheapest price+ Best service+ +Strong design+Fast deliveryMaterial100% high quality silicon material, Eco-friendly, harmless, non-toxic, non-corrosiveness.Size200mm(Diameter)*165(Caliber)cm, and also can be customized sizeUsageAdvertising and ...