Made from polyethersulfone (PES) a material with very high resistance to impact & heat this PHILIPS AVENT feeding bottle is guaranteed BPA-free. Clinically proven* Philips AVENT bottles reduce the risk of colic in newborns & reduce irritability especially during the night. Supple with a soft variable flow teat. Suitable from 3 months for thick liquids & ideal for larger appetites. Wide stable base. Always check the temperature of the food before feeding. * It has been observed that at the age of 2 weeks babies fed with a PHILIPS AVENT bottle suffer less from colic & are less irritable than those fed with a standard bottle. 24 month guarantee. Please note: this is a green star item no extra discounts apply.