Avent - Sipper with Handle Drinking training is easy with the Philips AVENT toddler sippers. The flip-top lid keeps the spout clean at all times even when on the go. The cup is amazingly spill-proof whether shaken or thrown in the air and yet easy to drink from. Non-spill spout:�Patented valve controls flow to avoid spillage even if held upside down or if left on its side Soft spout 6 months+:�Soft spout for delicate gums Completely Interchangeable : Cups spouts and handles can be used with the entire Philips Avent range attach directly to breast pumps or use a nipple instead of the spout when feeding. The soft spout and handles can also be put on the feeding bottle for an easy transition from bottle to cup.