Keep your cups in tip-top condition.
Kids love our Munchkin cups so make sure you always have some replacement valves on hand in case one comes loose or you lose it during washing. These patented, one-piece, easy to clean silicone valves fit all Munchkin spill-proof cups. They make drinking easy because the liquid flows through the valve only when your child takes a sip. That's why moms love our cups almost as much as their kids.