The Green to Grow Welcome Home Set of BPA Free Baby Bottles has everything new parents need to start nourishing a baby with confidence. Green to Grow baby bottles are free of phthalates and free of bisphenol A, a suspected hormone-disrupting chemical used in polycarbonate plastic, from which most baby bottles are made. The silicone nipples are made from a transparent, medical grade silicone that is heat-resistant, non-toxic, and odorless...and the silicone is free of nitrosamines, a potentially harmful contaminant found in many rubber nipples. This set includes: Two 5 oz, regular neck bottles, Two 10 oz, regular neck bottles, One package of 3 intermediate regular neck nipples (3 to 6 months), One package of 3 expert regular neck nipples (6+ months) and one organic cotton baby burp cloth.