Bright colored silicone sleeve (patent pending) helps to protect the bottle from breakage and provides a great gripping surface and tactile experience during feeding;Bottle and sleeve can be boiled or put in the dishwasher together.;Bisphenol-A (BPA), phthalate, and polyvinyl chloride (PVC) free;Silicone sleeve & nipples are non-toxic, free of plastics, latex free;2 9oz bottles, 2 4oz bottles, 1 pack of Stage 2 nipples, 1 pack of white caps