My dog and I play frisbee for about an hour a day summer or winter. I have tried literally a dozen different soft catch frisbees for him and the Zisc is the very best one by a wide margin. All the other dog frisbees on the market are either too light or too heavy, too soft or too hard, don't fly straight, etc. The zisc is perfectly balanced - easy for Milo to catch but also easy for me to throw straight. It took over a year and a half for the first one to wear out (it was outside all winter and eventually the rubber got brittle and got holes in it) and now I've ordered three more because it's such a great product!!!