TRANSITION STRAW CUP FOR BABY : Convert your Comotomo Baby Bottle to a soft-spouted bottle with this kit for an effortless transition. Note: Bottle NOT included. KIT INCLUDES: Straw Cup Nipples x 2, Self-Feeding Handles x 2, Weighted Straws x 2, Cleaning Brushes x 2, Nipple Storage Case x 1. COMPATIBLE WITH COMOTOMO BABY BOTTLE : Specifically designed for Comotomo Baby Bottles, our kit fits 5 oz and 8 oz bottles, enabling a smooth switch to a spill-proof straw cup. SOFT STRAW FOR GENTLE TRANSITION : Made from food-grade silicone, our bite-resistant, gentle straw cup nipple ensures a comfortable transition for babies 6 months and above. SPILL-PROOF STRAW FROM ANY ANGLE : The weighted straw adjusts with liquid, allowing your baby to drink from any angle without spills, only dispensing liquid when bitten. ENHANCE YOUR BABY'S TRANSITION : Convert your Comotomo Bottle into a versatile straw cup, promoting self-feeding skills with a leak-free and enjoyable experience. Dishwasher-safe food-grade silicone, 120°C/248°F heat-resistant design for effective mixing and transportation. Independently tested and passed to meet or exceed the product safety requirements and BPA Free, Phthalate Free, Latex Free, Lead Free. These replacement nipples by Anpei are compatible with your Comotomo baby bottle and turn it into a convenient sippy cup. These nipples are compatible with Comotomo bottles sizes 5 and 8 ounces. All components are made from a non-toxic food-grade silicone and polypropylene, and they are BPA, Phthalates, Latex, and Lead Free. The ANPEI products are independently tested to meet or exceed the U.S. Consumer Product Safety Commission requirements. The nipples are designed to be leak-proof, and heat-resistant for 120°C/248°F for effective mixing and transportation.