I bought 14 of these for the Oompa Loompas in our production of Willy Wonka.  They are perfect because they don't get "messed up" like all the other OL wigs I looked at.  Every time the kids came out on stage, their hair looked great.  Less expensive and a much better solution, in my opinion.  We didn't even need to put them on Styrofoam wig forms.  Great product.