This contains glitter material. This particular type of goop goes bad after a short period of time even in sealed bottles. At at Target store. Goop-FX is a very thick material and is not as runny as regular goop. These are sold in packages of 5 and the sets currently currently seem to have 4 color patterns.
Different sets seem to have come with different sized bottles as well.
I'm trying to figure out what came with what. If you have any other information about different types of goop please e-mail me.