These Adjustable Nipple Clamps could easily be considered a study in contrasts. In appearance, they look utilitarian, yet on a nipple they take on an artistic quality. Their bite is mellow and even, easily tolerated as the clamp twists tighter and tighter, yet when removed they provide a spike of delicious pain. They look like a hardcore set of nipple clamps, yet they are friendly enough for even the most timid of nipple play beginners. In short, they are an excellent choice for anyone – from heavy masochists to bondage artists to fledgling nipple play adventurers, and everything in between.

Made from stainless steel, these clamps are square in shape, with a screw one one face of the square that, when twisted shut, lowers a bar of metal down the square, till it finally rests at full deployment across the opposite end of the square. To release the pressure, the screw must be unscrewed – there is no easy peasy quick release, which is really the only major flaw with these clamps. Outside of sex product context, these clamps can be found in science laboratories being used as a hose crimper, as the pressure they exert on whatever falls into their grasp is even and controlled and most importantly, secure.

On the nipple, these clamps can be oriented at any angle, but basically, they can be placed so that the adjustment screw pushes the clamp up into the nipple (chain dangling down), or so that it's pushed across into the nipple (chain dangling down from ABOVE the nipple). In either of these orientations, the chain can be pulled on quite hard without the clamp coming free – because, of course, the entire nipple is sandwiched in clamp. In some other orientations – namely, placed horizontally with the chain below the nipple – the clamps may come off if the chain is pulled very hard or if the clamp isn't placed very tightly. The chain itself imparts a nice level of tug onto the clamps, simply from its weight.

As noted above, these clamps can be tightened ever so gently to a nice mellow pinch that will result in a nice warmth in the nipples when released. If tightened slowly over time, the nipples can take quite a bit of pressure from these clamps – but be aware, when they're loosened and the blood comes rushing back in the sensation can be very very intense. I have pierced nipples, and these clamps are my favorite to use on my nipples, and also on pierced nipples that I have had the pleasure of tormenting. They fit best behind the piercing, and also work best when placed so that they're being squished perpendicularly to the piercing. Piercing or not, these clamps make the nipples invitingly prop forward and outward – amount dependent on how far back the clamps are placed – with the nipple nicely exposed and ready for tender licks, gentle nibbles, or sadistic pinches.

I recently read a review here on Eden Fantasys where the reviewer stated that these just would not stay on when tugged, so I wanted to touch in on that some more. These clamps can be positioned so that the "exit route" is aligned with the way they the clamps would pull down when force is applied to the chain. In this instance, if the clamps aren't tight enough to pinch with gusto, then yes, they would slide off. If, however, they are oriented so that the chain points "upwards", tugging won't pull them free unless they are very loose. And like all nipple clamps, if they're loose, it's going to be tough to tug on them with much force.