Anal Plug

Diamond-shaped toys designed to stay inside the rectum. Anal plugs, like the Tulip Plug, have a flared base that prevents the toy from disappearing up the rectum.

For an anal toy you can move in and out, choose a slim dildo with a flared base, like the Smooth Operator.

Also Recommended:

Complete Selection of Anal Plugs
Beginner's Guide to Anal Sex
How to Choose an Anal Toy
All Butt Toys at Babeland