Obviously, price level, especially with the subscription, there is no competition, but in addition, it is a product of very good quality. The film really sticks very well, and the system for the cut is extremely convenient, much better than the usual "Saw." Against by at progressively uses, the thickness of the roll decreases. The box, thus being increasingly vacuum loses strength, and sinks the flap, which makes use less convenient. But a little scotch in strategic locations overcomes this problem for good.
