... heavy metal ion, safer than glass feeding bottle.Unbreakable & light, easy & safe to use.Bottle body can be turned over, easy ... competitive price, LSR(liquid silicone rubber) produced by ourselvesSilicone Baby Bottle components & material: Twist cap, hand shank: food grade ... A Stainless steel ring: avoid milk leaking out of bottle mouth Silicone bottle : flexible, breast feeling, add maternal sense, ...