Some things in life just CLICK.See, feel, and hear the leak-proof guarantee every time you CLICK the lid in place and flip out the flexible straw for a drink.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% leak-proof guarantee! These innovative toddler cups have flipping straws and 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% replacement guarantee. Secured, and rest assured - this might just be the sippy cup of your dreams.Details:9 oz capacity for water, milk or juiceNo room for error - locks in place with an audible clickSoft, flexible leak-proof straw flips up and out when ready to drinkBPA-free, top rack dishwasher-safe12+ months