The plug has a rubber tube designed so that fluids can pass through while it's inflated. Once inserted and inflated, the large rubber hose can be connected to an Enema Bag or Inline Bulb Accelerator. The inflated plug prevents pushing out the plug and the enema until the desired time. The buttplug inflates by means of a bulb with release valve. This inflatable enema plug is built to last. Entire piece is 22 in. long. When pumped to the maximum, size is 2 in. circumference.