The Black Beaded Nipple Clamps from Spartacus are a great clamp for those who enjoy more 'bite' in their clamps. They can be adjusted in two ways and so there are a multitude of settings possible. The crocodile clamp helps the wearer attach the clamp to the nipple, while the screw on the side of the clamp opens it to its widest possible setting.

These settings are great for varied use. If you have small nipples, or enjoy a lot of pain, you simple adjust the screw to bring the clamps shut. From there the lever opens and closes the clamp, leaving enough room to get your nipple in.

If you have larger nipples, or want less pressure, you can open the screw up by holding the lever open and twisting the screw to your desired setting. You can still open the clamp further with the lever to get your nipple in, but it will not shut past the screw.

If you choose to open the clamp fully, you cannot use the lever to open or shut the clamp; instead you will have to screw the clamp shut on your nipple. While this might be slightly unwieldy, this allows gradual pressure instead of an immediate bite.

When the clamp is fully opened with the aid of the screw there is half an inch of space between the rubber tips. When the screw is pulled out completely the clamp can still be opened with the lever to the same distance. The screw just allows the clamp to stay open that wide.

When the clamp is on the nipple the pressure is quite intense. The pain could best be described as equivalent to biting your nail bed with medium pressure for thirty seconds. The clamp stays on the nipple easily, and you or your partner can tug at the clamp with medium strength without it slipping off. While pulling the wearer around forcefully by the nipples would pull the clamps off eventually, tugging the wearer forward, or tugging the nipples up by the clamps would be fine.

If you do find that it slips off then it’s not tight enough or it’s not gripping enough of the nipple. When the clamp is firmly on it will feel tight. Since the clamps are very light they do not drag your nipples down, they pinch them. These clamps make the wearer feel like you have someone constantly pinching your nipples.

The clamps are easy to use. They are slightly tough to open and hold open, and they do clamp down very firmly. They are a combination of metal and plastic, but do not contain any nickel. The rubber tips are wide and comfortable. They are firmly glued onto the clamps and create the pinching feeling as opposed to feeling as though someone is biting your nipple with their teeth. The clamps can be easily stored in a little cloth bag to keep dust away.

Overall these are fantastic to own if you want a light clamp that pinches very firmly, doesn’t drag your nipples down, and has many possible settings.

My clamps are set so that there is a sliver of light between the rubber tips. When my nipples are clamped I make sure to clamp as much of the nipple as I can, rather than clamping only the tip. This allows for a sturdier grip and a better pinching feeling. I've touched a vibrator on the clamps and have felt a painful buzz through my nipples (which was great!)

After taking the nipple clamps off, the pain is sharp as feeling returns to my nipples. The best thing I've found for that is to have your partner suck on them gently.