#1 PHYSICIAN RECOMMENDED BREAST MILK STORAGE PRODUCT IN THE US*: Our package of spare parts for Medela bottles is a convenient extra to have on hand, in the event that you need clean bottle lids, caps, collars, and/or discs at a moment’s notice INCLUDES 3 SETS OF MEDELA BOTTLE SPARE PARTS: Three travel caps, collars, discs, and solid lids, which are all compatible with Medela breast milk bottles and wide base nipples, are convenient for easy travel, on the go cleanliness, and unexpected needs EXTRA PARTS COME WITH CONVENIENT MESH BAG: Clean your Medela bottle spare parts in the dishwasher and easily keep them together and organized during washing, traveling, or at your nursery station with the included mesh bag MADE WITHOUT BPA: As always, all Medela breast milk bottles, accessories, pump parts, and spare parts that come in contact with breast milk are made without BPA – our bottles are carefully designed to most optimally retain your breast milk’s benefits Compatible with Medela breast milk bottles and wide base nipples Convenient mesh bag for cleaning bottle parts in the dishwasher and keeping them together Includes three sets of travel caps, collars, discs and solid lids