Help your little one learn grown up drinking skills of tipping and sipping without making a mess. This great Easi-flow cup works just like any open cup, but stops spills in their tracks. Thanks to the clever spill-proof lip-activated valve, toddlers can drink from anywhere around the rim. Tested against the global top sellers, it's the easiest 360 degree cup to use helping them build their drinking skills, without spills and endless cleaning up.