This 8 oz. soft cup is uniquely designed to allow individuals to learn or re-learn straw drinking with less effort. The Select-Flow Valve included with each Cip-Kup ensures that fluid will remain in the straw without flowing back into the cup, thereby reducing the chance of coughing or choking. Keeping fluid in the straw is also great for individuals with a weak suck, and it can make the move from bottle-feeding to cup drinking an easier transition as well. Simply squeeze the fluid to the desired height and release. When purchased, the Select-Flow Valve is set for moderate restriction for users who tend to aspirate or take too much fluid in one swallow. The valve can also be trimmed to increase the flow, thereby decreasing the effort required to drink. Try using the Cip-Kup with one of our Lip Bloks to work on lip and tongue position.