Bottle : Borosilicate Glass feeding bottle features a patented internal vent system that eliminates vacuum and air bubbles to help reduce colic, spit-up, burping and gas. The no vacuum system also reduces fluid in the ears for a healthier baby., Air is allowed to enter around the nipple collar, so it doesn't mix with the breast milk or formula. , The baby feeds more comfortably without having to fight the negative effects of a vacuum or ingesting air bubbles., Since the bottles are made from BPA-free and Borosilicate Glass they are quite safe to use for all children. , The Borosilicate Glass even helps preserve vitamins C, A and E and lipids that can be lost with other products. , The LUQU bottle set fit with any of the same brand standard nipples and other accessories such as the microwave sterilizer, dishwasher basket and drying rack. , They're easy to clean with hot, soapy water and are dishwasher safe. , Brush: For use with all standard and wide neck LUQU natural flow baby bottles, this natural flow bottle brush features a grooved, no slip handle and Silicone brush head for thorough, easy cleaning of bottles. At the base of the bottle brush are fixed chevron channels, designed specifically to clean nipples with ease. , A storage clip is included so you can house the brush near the sink. , Includes: 1 Feeding Bottle, 1 Silicone Brush.