I received the product free from 3M. As a teacher, I thought this would be a great addition to the classroom.  The cleaning cloth is superb! The sticky back made it a bit difficult to pull off the backing. It would be great if the backing had grid lines to aid in cutting. Considering I can't draw a straight line with a ruler, the idea of having to hang this up unnerves me. [This review was collected as part of a promotion.]