OPI came up with this little black number as an effects top-coat for their Spiderman polish collection.
Here's what it does...
Kind of like shatter polish, yet marginally less ugly.
The reason this one is selling on Ebay at the moment for $70 (that is not a typo), is because OPI kept this for their European market only.
Now you know.Nails image via nailderellanails