Non-spill valve keeps cup hygienic anywhere Non-spill, faster flow This Philips AVENT fast flow spout cup is ideal for the active toddler. It is amazingly spillproof whether shaken or thrown in the air and yet easy to drink from. The cup has a fliptop lid and a clever side clip to attach to belt or buggy Non-spill ? Non spill spout with patented valve ? Snap-top lid keeps spout clean Easy-sip ? Fast flow and bite resistant spout Inter-changeability ? Completely interchangeable with entire Philips AVENT range Easy to clean ? Entire cup can be sterilized for hygiene purposes ? All parts are dishwasher safe for convenience