Collapsible travel cups are small enough to fit inside your pocket!Set of 3 accordion shaped portable plastic cups contain a pill holder (attached to the underside of the lid). When you need to take a drink simply remove the top and pull it up. Cup then expands up to full 3 inch tall size that holds 3 ounces of water. When finished the cup folds down to a 2" diameter disk that is only 7/8" thick. Capacity 3 fluid ounces.