Lust Tunnel Plug with StopperOpen for everything it can be closed as well! This hollow butt plug can be held in place by muscles. You can then have fun looking through it and pouring liquid into it You can close the plug with the included stopper to stop the liquid from leaking out. A revolutionary toy for true anal lovers! The wide base makes sure that the plug stays where it is during anal fun. Complete length 10 cm, insertion depth 8. 5 cm. Outer 3 to 5 cm, inner 2. 5 cm.