I think this is a bit of a rip-off. All it is, is a rather crudely cut bit of plain green baize, three cardboard tubes that telescope together and three velcroed elastic straps. To be honest, I could have made this myself for half the price. I haven;t had a puzzle mat before and it just about does the job, but it did shed pieces and disrupt the puzzle a bit, and it was quite hard to roll up because the tube is telescoped and therefore is not a consistent diameter from end to end. I would recommend "buying up" - get a better quality mat with a grid on it, for a start. Disappointing.