Spectra Anti-Colic Teat Set is a pack of 2 soft silicon teats that are compatible with all Spectra Milk Bottles. They are manufactured from LSR - Liquid Silicon Rubber, using advanced technology that makes the product durable. Our offered range of nipples is super-soft and supple and acts gentle on baby's tender gums and teeth. Spectra products that come in contact with breast milk are and always have been made without BPA, retaining breast milk's beneficial properties. , , Sizes , Extra Small (0-1month) , Small (0-3 months) , Medium (3-5 months) , Large (5-7 months) , Extra Large (7 months and above) , , What's in the box? , 2 x Spectra Anti-Colic Teat