Catheter that closes, master's control

[Havelock]

hey guys, looking for a catheter that can be closed to prevent pissing, until my Master lets me unscrew/remove the stopper.
Ideas where to buy one?

 

[Top_of_men]

hey guys, looking for a catheter that can be closed to prevent pissing, until my Master lets me unscrew/remove the stopper.
Ideas where to buy one?

You don't need a catheter. You can tie it with rubber band and remove it when your master wants. Be ready for all kind of shit tho