So I recently picked these up from Sephora and am glad I did. I really thought they were stencils. I've been looking around for stencils lately. Anyway, these were really easy to put on. They're like heat-activated stickers for your nails. You just file off the excess (unless you have super long nails that require usage of the full strip). I Should make it clear that if you have wide fingernails, there will be a little space left uncovered at the sides of your thumb nails. There are 16 in each pack so if you screw up you can peel it off and try a new one. They're easier to get on than take off. I find this to be a good thing, but when I messed up a thumb (bad fit), it was a beast to get it off.
I give these 4 out of 5 stars. I can't blame Sephora or O.P.I. for my man hands, but I can blame them for only having 16 in a pack, 4 of which are anchor designs which happen to also be the widest strips. What if I wanted a plain striped thumb and to put the anchor on my ring finger? They've got to do better.