Round Butt Plug Medium Black. Acquaint, humiliate and finally, satiate yourself with the latest addition to Doc Johnson's Sil-A-Gel series of Round Butt Plugs. These pleasure plugs are ideal for playful, wild encounters and feature a simple, body friendly design. A smooth rounded body, extended neck and round base combine for convenient controlled wear and play. Soft, semi-flexible PVC ensures that even anal novices will delight in this toy! If you're looking for a larger anal plug, these Round Butt Plugs are the best option. Specifically designed for advanced anal players. Treat yourself or a partner to quality back door fun with Doc's Round Butt-Plug. A must have for your toy box! Diameter goes from 1"-2"