Moms can enjoy spill-proof drinking at nighttime, school time and travel time with these Miracle 360° sippy cups from Munchkin. The valve seals the cup as soon as your little one is done drinking to eliminate spills. The dentist-recommended spoutless design helps support normal muscle development in a child's mouth and makes the transition from spout-style cups easy. With no extra spouts, valves or pieces, the Miracle 360° Cup is easy to use and even easier to clean.