Toddlers and messes go hand in hand, but you can eliminate at least one kind of leak with Munchkin's Click Lock Bite Proof Sippy Cups, which come with a soft, bite-proof spout and a 100% leak-proof guarantee. These innovative cups feature a simple locking lid that closes to create a leak-proof seal. You can see, hear and feel the cup lock in place, so you have triple assurance against dribbles and drips. Munchkin even back this no-leak promised. Secured, and rest assured - this might just be the sippy cup of your dreams. Finally, a bite proof cup that's gentle on soft gums, because while a spout should be tough, it doesn't have to be hard.