> Kindly note that "Loose 1pk" cups will be supplied without retail packaging as these are taken from the retail twin packs. All cups (2 cup or Loose 1pk) will be packed in proper bubble wrap for shipping. > Raised spout shaped like a bottle so it’s familiar to baby > Bite-resistant spout > Unique, flow-controlled valve makes drinking easy & mess-free > 100% leak-proof, spill-proof, break-proof guaranteed > Promotes safe, independent drinking > Fun design appeals to toddlers > For Hide n Seek models only: Heat-activated color-change designs respond to cool water and baby's warm touch > Dishwasher-safe > BPA-free > 10 oz / 300ml > Made in USA A flow valve inside the spout ensures no leaks. Liquid will only flow when sucked at the spout. Your child can drink it in any position, even lying down, and not have leaks. Replacement valves are also available, listed as "Valve Loose 1pc". This valve will be supplied loose without original Nuk plastic bag. It will be packed in a plain PP plastic bag. We also have the 2pk valves in Nuk retail pack. Chat with us and we'll be happy to provide you with the product link. #sippycup #nuk #nuksippycup #hardspout