BABY ESSENTIALS: Playtex Baby bottle set includes 8 ounce Nurser bottles (3 pack) and 15 pre-sterilized, disposable Drop-Ins bottle liners that are compact and lightweight, making packing and travel with baby hassle-free REDUCES GAS AND COLIC: Our Nurser bottles with Drop-Ins Liners reduce air ingestion by collapsing as baby feeds, reducing air intake and decreasing the risk of gas and fussiness TRUSTED SAFETY: Our products are crafted from high-quality materials that are BPA, PVC, and phthalate-free to provide a safe and hygienic environment for your little one's nourishment MESS-FREE: Enjoy easy feeding with our leak-free Nurser baby bottles and snug-fitting recyclable bottle liners that allow for responsible disposal and reduce bottle cleaning time PERFECT FOR PARENTS: Playtex Baby's feeding system supports babies with bottles that offer air-free feeding to prevent colic, drop ins disposable liners, nipples most like mom, sippy cups, and binkies that grow with your child and adapt to their unique needs Specially designed for use with Playtex nurser bottles. Convenient disposable liner collapses to keep air out of the milk. BPA free. What makes the Playtex nurser with drop-ins liners different? Drop-Ins Liner: As baby feeds you can see the soft liner gently collapsing to prevent air from mixing with the milk and getting into baby's tummy. This means less gas and less discomfort for baby.