I bought this to use playing Kan Jam with my daughters. The regulation disc that came with the game hurt their hands (and mine) when trying to slam the disc into the Kan. Anyway, this is softer and easy to grip and throw. It weighs enough to cut through a breeze. The only negative (for my use) is that it is slightly smaller than a regulation disc. I don't really care, but I do find it odd that they have this one that is smaller than regulation and another size that is larger than regulation. Nothing that is regulation disc size.