A standard pair of Handcuffs can be effectively used to torment your partner and not allow them to touch you, but it can also be used to just give a look. If cuffed behind the back your partner will be unable to assist in anything, but if cuffed in the front they're still relatively free to do whatever they want. This is great for beginners trying to introduce the idea of bondage or role playing. Also, advanced users can start with handcuffs and embellish as they see fit.

Stainless steel cuffs will last forever. My first set was bought as part of a cowboy toy set from when I was a kid and 20 years later they work for a different kind of play. One size fits all as they adjust via ratchet system. Strong steel isn't likely to break but might hurt the wrists of newer users. Also, this cuff set comes with a release system and keys. The keys make for role playing and the emergency release allows peace of mind during play.

These cuffs were just the thing to take a normal relationship and begin to turn it into a bondage love affair. While we have moved on to more elaborate bindings, we will sometimes still bring out these cuffs. After extended use it did chafe wrists but putting metal tight on skin is going to do that.