Crayola Washable Glitter Glue - 9 ct. Review

I bought Crayola glitter pens for my preschool class at church to use for a special project.  What I found is the children had a lot of difficulty squeezing the glitter out of the pen.  It required the assistance of an adult.  Furthermore, the pen would get clogged with the glitter causing nothing to come out.  The gliiter was beautiful when we were able to get it out but the children were very frustrated with the pens.  I would not suggest these pens for the younger age children.  They make the projects take twice as long and much assistance is required.