Medela Calma Breast Milk Feeding Nipple for Breastmilk Bottles, Pack of 2 - 8 ounce Bottles Description Size:8 Ounce Medela’s Calma Nipple is made for easy switching between bottle and breast and exclusive breast milk feeding. Vented design and flow control valve encourage seamless transition from bottle to breast, while allowing your baby to pause, breathe, and feed as needed and as he or she naturally would when nursing at the breast. Engineered to replicate feeding patterns and mechanics when nursing, milk flows through the Calma nipple after a vacuum has been established. What’s Included: (2) Calma Nipples, compatible with all Medela bottles; (2) 8-Oz. bottles; (2) Caps; (2) Lids These breastfeeding bottle nipples can be used through all stages of your breast milk feeding journey to continue feeding your baby your liquid gold for as long as you choose. Additionally, the Calma nipple is made without BPA, just like all other Medela breast milk bottles and products that come into contact with breast milk. Features: Vented nipple helps avoid gassinessMimics natural feeding behaviorFlow control valve allows baby to control milk flow. Milk only flows when baby creates a vacuum.One size or shape nipple for all stages of breast milk feedingMade without BPACompatible with all Medela breast milk bottlesFlow control valve allows baby to control milk flowMilk only flows when baby creates a vacuumMimics natural feeding behavior: baby can feed, pause and breathe, similar to breastfeeding Product Details: Item Weight: 5.6 ouncesProduct Dimensions: 2.2 x 2.2 x 6.8 inchesUPC: 885103456264 726983088889 594883143218 786417127591 796629116399 020451680224Item model number: 68022Material Type: BPA FreeNumber of items: 2Batteries required: NoIs portable: NoShipping Weight: 5.6 ounces Payment We accept Paypal payments only. Sales tax may be applied to your purchase as we possess sales tax certificates for all states we collect sales tax in. If your state is one that we charge sales tax in, you will see the sales tax charge at time of checkout before you submit payment. Delivery Expedited shipping is free. Handling time on our orders is normally between 1-2 business days. Your order should reach you within 1-3 business days. We do not ship to AK, HI, PO boxes, or APO addresses. We're not responsible for any incorrect or undeliverable addresses. We only ship to the confirmed Paypal address. We don't accept requests to change shipping addresses post purchase. We do not ship to AK, HI, PO boxes, or APO addresses. We are not responsible for any incorrect or undeliverable addresses. We only ship to the confirmed Paypal address. Please note that manufactures update their packaging from time to time and that the packaging images shown in our product may vary from what you ultimately receive however be assured you are receiving the identical contents you ordered. Return Policy You may return new, unopened items within 30 days of delivery for a refund, and a restocking fee may apply. Return shipping fees are not refundable. Message us for return instructions if you have questions. Support & Feedback We take our reputation seriously, we buy and sell online, so we understand the value of trust. If you are unsatisfied with your order, please contact us and we will work with you to resolve it to your satisfaction. Contact us via eCRATER messaging and we will respond within 1 business day. Our office hours are 8AM-4PM PST Monday-Friday. We thank you for your business!