I'm a teacher and use overhead projectors all the time, the old sheet on the blackboard was not working for me anymore, so I ordered this to keep at work. It's great, easy to handle and the price is the best around, I've been looking for this for some time and the cost was always prohibitive as this comes from my pocket, not the schools, but this fit the bill, and presents a more professional look, the students like using the overhead projector more and their diagraming sentence work has never been better! Thanks.