I have mixed feelings about this product. The positive aspects of it are that: it is indeed 'heavy duty' and protects a solid wood floor from the occassional 'bounceout', the markings are clear and the lines are nice and fat. However, there are a few negatives. Perhaps I shouldn't complain, but it's been in the house for over a month and still smells very strongly like an old tyre which doesn't exactly make the wife love it ! I've played on it in bare feet and some of the markings have been almost worn away as the white pigments have 'come away' from the mat, presumably due to the moisture, which is far from ideal as you'd expect a product like this to be capable of bing used in all conditions and to really last. Ironic, really, that workmen boots are fine but your bare feet can damage it ! Finally, as it's supplied 'rolled up' it's also proving difficult to actually get it to lay flat, at both ends, and it's been down a month - this makes it hard to ensure it's in the correct place and doesn't look great.