Easier than the ones connected with chains. The trick, like with all of them, is to be careful when applying the pressure. But great price-performance.
Great quality collar with nipple clamps. The pressure of the clamps can be adjusted with the provided screw. I have found that the pressure of the less tight setting of these clamps is just good and do not hurt much. Overall a great purchase...
Very strong clamps. The screw can avoid it making too much damage but it has little leeway and room for manoeuvre in guesses, if applying in others. For hard core pain sluts, might be just perfect, though :-)
Great for anyone who is looking to play with nipples. The adjustment is stepless and very easy to use, therefore everyone can find the amount of pressure they need. Great value for the money!