Nuby Flip-it cup with touch-flo valve promotes natural drinking action and healthy oral development. The valve opens with minimum pressure and doesn?t require constant sucking that can damage new teeth and soft palates. The flip it cover keeps the straw clean and hygienic. Nuby comes to you from the USA and is one of the World?s Leading Brands in infant feeding, teething and drinking products. Recently launched in the UK Nuby has won numerous prestigious awards including Mother&Baby, Practical Parenting and Prima Baby for Newborn Feeding, Drinking, Teething & Toys which are all independently tried and tested and voted for by parents themselves