This butt plug has a rubber tube running through it so that fluids can pass through while it is inflated! Once the plug is inserted, use the hand bulb to achieve your desired inflation. Next, the large rubber hose can be hooked to an enema bag. When the time comes to administer the enema, the fluid will flow through the enema butt plug into the anus. The inflatable plug prevents pushing out the plug and the enema until the desired time arrives. When you are finished, use the pressure release valve to deflate. 

Dimensions:
Length: 4.5 in.
Width Deflated: 1.5 in.
Width Inflated: 2.5 in.