Easy to Seal with Seal-Zone Technology
To ensure that the cup is sealed, simply align the arrow on the lid to the Seal Zone area on the cup. Now there is no need to worry about cups leaking in the diaper bag or all over your car. You can rest assured that the Advance Hard Spout cup will stay sealed. You don’t have to worry about messes as your child learns to drink from a cup since this cup is 100% leak-proof, spill-proof and break-proof, guaranteed