Smart Flask Biteproof Straw lid Replacement for Wide Mouth Flasks and Bottles, 3 Pack
PERFECT FOR KIDS: The spout is hard. No more chewing through the spout. It is one piece, seamless and non-porous. Not porous like softer spouts and no seams for mold and bacteria to hide in. No more lipstick stains. Because of superior sealing DO NOT USE WITH HOT LIQUIDS.