bottle caps 1.Material:100% silicone 2.FDA and LFGB certificates 3.Fit beer bottles; ... of food grade silicone, non-toxic, odorless, withstand low temperature, airtight, aging-resistant, reusable and durable. What is more, they are ... bottlesCertificate FDA; LFGB; ROHS; REACH; PAHSPlace of origin Guangdong, ChinaFeature1.airtight, aging-resistant, non-toxic2.odorless 3.suitable for promotion4.factory ...