If you are new to anal/prostate play, this small plug  is a great way to get started.  With its 1.25 inch diameter and taper to a 1/2" neck, once you lube up, it will slip right into place.   Additionally, it is stainless steel and ergonomic at the base and is very comfortable to wear and use.  You can even wear it for longer periods during the day to get Mr. Sphincter used to its new friend.  :) Works great for ladies too, anally or in the vagina.

This electrode comes with a male snap connection on the bottom to electrify it.  

  Once you are done wearing or using this plug it unscrews from the base for easy cleaning and ready for the next time.

    Can be disassembled for cleaning