Silicone 
Imported 
Naturally shaped, soft, silicone nipples - ideal for breastfed babies to eliminate nipple confusion 
Dual anti-colic vents prevent unwanted air intake and reduce colic 
ComotomoTM replacement Nipples grow with your baby 
Safe in microwave, boiling water, dishwashers and sterilizers 
Made of 100 percent safe hygienic silicone