Make spillages a thing of the past with the award winning B.Box Essential Sippy Cup with its popular and innovative weighted straw that lets kids drink to the very last drop.No matter what angle the cup is tipped the revolutionary weighted straw moves with the liquid. The leak proof design and easy grip handles increases your child''s independence.The Sippy Cup features a simple to use flip top lid, is dishwasher safe, made from PP and Silicone and is BPA, Pthalates and PVC Free. ExpirationThis product has no expiration date or the manufacturer has not provided an expiration date.