Granted, they aren't super holo, but they were only 99 cents!
They go on very sheer so, will work best as a top coat.
I wish my camera would capture the million-rainbows effect of a holo. I did three coats of OPI Sweet Heart and two layers of the holo top coat. It was fun to play around with and decide if I want to invest in holos in the future. Thanks for reading!