Well, if you have been practicing BDSM since a while, then, you should try to wear a metal chastity cage.
Otherwise, this plastic locker has been designed for all the men who wants to experience a new pratic : the abstinence.
With it, your balls and your dick are trapped and your sexuality belongs entirely to your master. That's the exciting thing with this BDSM accessory. If he/she wants, your partner can made you mad of him/her and excite you while you can't do anything.
Also, he/she can do something with somebody else and cuckold you. You'll just be able to watch. And that's the ordeal.
This dick locker is the best toy to try and practice chastity.
4 inches in length
1,25 inches inner diameter
Easy to hide
Travel-friendly : it can't sound in a metal detector