Since the adjuster doesn't work very well, you can't get them both on to do anything. They certainly are not exciting. They are disappointing to say the least.

These clamps are just titillating enough to satisfy a craving for pain-pleasure, but are just restrained enough for even the inexperienced beginner to find accessible. The masochists among us will be left wanting, but the average user will most likely find these to be more than adequate, especially with the ability to adjust the pressure felt.

These work well and look beautiful on my wife's nipples. Unfortunately, they won't stay on mine beyond a gentle tug.

This is a great item for those wanting to experiment with kinky nipple play. However, advanced users will be underwhelmed. This item is best for those who want light pressure, not pain. If you're new to using nipple clamps the way I am, this item will be an easy, non-intimidating and cost effective way to start.