I was very surprised and impressed with the Vibro Plug. It has a classic butt plug shape but still manages to be outstanding in how they implemented that design.

The bulb head flares out to the maximum 1 1/4" diameter quickly, but with a gentle enough flare to not be jarring for a new user. After the head, it shrinks to a nice, thin neck quickly so that it stays in easily, even during vigorous activity. Finally, the T-handle arms are long and firm enough that you don't worry about the Vibro slipping in, but they have enough inward curve and flex so they are comfortable for long-term wear.

What really makes the Vibro standout is the weighted ball inside the flared head. This has enough weight and movement that you can feel vibrations from it with every hip movement or step. For me it wasn't quite long enough to hit my prostate but added a very nice counterpoint to sex. Since the vibration is only felt when you are moving, it does add a nice distraction when doing other activities like grocery shopping or running on the treadmill. (NOTE: I recommend testing the running while wearing the Vibro Plug at home before going to the gym. In the middle of the gym is not when you really want to pitch a tent.)

As with any great anal toy the Vibro is made from 100% hypoallergenic, latex-free silicone so it is easy to keep clean with soap & water or a sanitizing spray. Personally, I usually toss it into the dishwasher when I run a load and then use a specialty cleaning spray. Along with the ease of cleaning you will want to make sure to use a water-based lubricant. Please don't use a silicone-based one, as it will damage the surface.