Features & Benefits Compatible with all Medela breast pumps: Pump, store and feed with one container Dishwasher safe: Cleaning couldn't be easier with our dishwasher safe bottles Easy to read volume marks: Measuring the exact amount of the milk you're pumping is easy with our colorful ounce and milliliter markers Travel cap: Keeps nipple clean Made without BPA: Safe plastic designed to retain breast milk's benefits Make sure breastfeeding is well established before introducing a nipple This product includes 1 - 5oz Medela breast milk bottle with nipple, solid lid, collar, and travel cap. Medela breast milk bottles are made without BPA. Safe plastic designed to retain breast milk's benefits. Medela's Commitment to Breastfeeding and Breast Milk: Medela is committed to supporting the WHO Code’s call for commitment to breastfeeding and breast milk as the optimal nutrition for the growth, development and health of babies. In line with the AAP Guidelines on introducing bottle feeding, Medela recommends that breastfeeding be well established before introducing a nipple. 5 oz. Breast Milk Bottle Single includes: 1 - 5oz/150mL breast milk bottle 1 - solid lid 1 - slow-flow silicone nipple 1 - wide base collar and travel cap