1.PC feeding bottle bottle with Liquid silicone rubber nipple. 2.Printing ink ... feeder:Nipple: nipple is made of food-grade liquid silicone rubber, more sanitarian and safer than ordinary ... of food-grade POLYCARBONATE one-time injection blow moulding bottle is transparent, light weight, smooth inside, easy ... the bottom the presure inside and outside the bottle.More healthy, safer,no-toxic and odorless, ...