Munchkin Colour Change Miracle Cup – Yellow The Munchkin Colour Change Miracle Cup – Yellow toddler cup comes with a dentist recommended spoutless design to help protect your little ones teeth. The 360 edge allows drinking from any side of the cup and has a and has a 9 Oz/ 266Ml capacity . To use simply tilt the cup and suck on the valve’s edge to open the cup. Furthermore, the cup automatically seals when your child stops drinking helping prevent any spillages from occurring. This colour change cup is triggered by cool beverages below 57°f/14°c. Easily cleanable by hand. Also available in Blue and Pink.