Spill-proof cups are the best thing ever—until you insert the straw and liquid erupts like a 5th Grade science fair project. Enter these ingenious straws: they feature a spillproof valve that eliminates the chance of unwanted volcanic activity. Includes six straws and a cleaning brush and can be cut to fit almost any cup. Ka-boom!
Wash thoroughly before initial use and after each use. Wash each piece separately. Dishwasher-safe or hand wash in warm, soapy water. DO NOT microwave.