This is an enema classic favorite!this Butt plug has a rubber tube running through it. fluids can pass through while it is inflated! Once the plug is inserted and inflated 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 colon. the inflatable plug prevents pushing out the plug and the enema until the desired time arrives.inflates by means of a bulb with release valve.the enema plug is 4.5" long and 1.5" wide. when inflated, it widens to a little over 2" wide.pay attention!do You use the intimate douche both anally and vaginally? Always clean both the inside and the outside very well with lukewarm water and a toy cleaner to minimize any (harmful) bacteria.