Finally, a bite-proof training cup that's also truly gentle on gums! Designed with a spill-proof seal and ultra-soft spout, the Munchkin® Click Lock™ Bite-Proof cup is the perfect match for even the most determined power chewers. Whether they're just starting to learn or already in the sippy cup stage, the textured, easy-to-hold shape is designed for little hands to manage with ease. With a bubbly, modern silhouette that’s just as fun to grip as it is to sip, the cup also has your back with a satisfying, audible click to let you know the lid's sealed in place. Our patented Click Lock technology gives you triple assurance against dribbles and drips–you see it, hear it, and feel it lock! We even back this up with a 100% spill-proof guarantee. The one-piece valve means fewer parts and faster cleaning, too. No mess, no stress, and not a single bite mark in sight.