This product is a bit of a mixed bag. The clamps themself are light and seem a little flimsy, but they have a very tight grip - not for beginner users. They can be removed from the cage, which is also a nice bonus.
Tightening the cage is delightfully painful, but awkward to use - especially solo. They are tall and narrow, and tend to sort of fall over, so you need to hold them in place - especially if you have larger breasts.
Overall a fun little toy for anyone who enjoys bdsm and nipple play
Looking for solo hard nipple play. These move around on my D cup breasts. Kinda disappointed.