A cup with a leak-proof guarantee you can see, feel and hear because sometimes things in life just click. It's the little things. Toddlers and messes go hand in hand but you can eliminate at least one kind of leak with munchkin's click lock sippy cups, which come with a 100 percent leak-proof guarantee. These innovative toddler 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 backs this no-leak promise with a 100 percent replacement guarantee. Secured and rest assured - this might just be the sippy cup of your dreams. 9 oz capacity for water, milk or juice no room for error locks in place with an audible click- silicone spout plus easy-to-clean, one-piece valve BPA-free, top rack dishwasher-safe- 9+ months.