Yes- I used them for the first time this year with my middle schoolers. You
MUST instruct them on how to use the "special" glue bottles or they will
scream. I only had one problem - a child unscrewed the cap for the next
class and the glue spilled all over when the student squeezed the bottle.
The caps seldom get clogged- but they do so intruct the kids to switch
bottles with the teacher's if that happens. They are really easy to unclog
but it involves taking the cap off and cleaning both the plug and the cap-
easy, 5 min max!
Kathy in Kalamazoo