REPLACEMENT KIT FOR SPOUT & STRAW: The replacement kit includes a spout and straw that help extend the longevity of your child’s favorite cup. SOFT SPOUT: The soft silicone spout is gentle on gums and teeth and tucks away to help prevent spills and leaks. CLEAR DESIGN: Nuby’s Thirsty Kids Reflex Spout and Straw are clear so parents can have confidence their child is drinking from a clean, mold-free cup. EASY TO CLEAN: The silicone spout and straw attachment are dishwasher safe and can be boiled and steam sterilized. THIRSTY KIDS COMPATIBLE: Made to fit Nuby’s Thirsty Kids Reflex Spout Cup. Nuby uses safe and durable materials with your child’s health in mind.