9oz capacity for water, milk or juice Soft, flexible straw is spill-proof in both open and closed positions BPA Free, Top rack dishwasher safe 12+ Months Toddlers and messes go hand in hand, but you can eliminate at least one kind of leak with Munchkin’s Click Lock insulated cups, which come with a 100% spill-proof guarantee! These innovative Paw Patrol straw 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% replacement guarantee. Secured, and rest assured - this might just be the straw cup of your dreams