The Medium Rocker butt plug is somewhat longer and thicker than the Small Rocker butt plug.
The tapered shaft helps with insertion and creates an auto thrust effect while using your stimulator. The distinctive rocker base helps direct you to an anal orgasm, while subtle tactile ridges enhance sensation.
The base has a hidden connection for your stimulator, so you may rock and grind against it while playing for a hands-free experience.
Stimulators for ElectraStim are available separately.