Might not have used for intended reason, but works
Did not use these for "correction".  for a little more fun instead.  They work well, but you HAVE to use some kind of lubricant to wet the skin to get a seal to get the suction.  the syringes are tricky to get them to work, but they work.  The soft ones work better after using the hard ones with syringes first
Rating: 4 stars