The First Essentials by NUK Clear View Bottle is ideal for your baby. Whether at home or on-the-go, feeding time is made simple with a leak-proof, colic-reducing vented nipple. This bottle's silicone, ribbed nipple is designed to help prevent nipple collapse and the vent holes help reduce colic by limiting the amount of air baby swallows. The bottles are also designed with a soft silicone nipple that is gentle on baby’s gums and a nipple-sealing hood for leak-proof protection! Bottles are BPA free and dishwasher safe, and recommended for ages 0m+. Colors may vary.