seriously!!!
The ball has been tested by the USGA and it does not meet the standards for ball size, materials used ect. Before buying a ball that is similar to hitting a rock, you should be fit by a ball fitter if your hope is to better your game. Anything you think you may gain by using a ball like this will be short lived confidence after switching to a proper ball, thats if it doesn't effect your game in other areas besides length...
For the love of the game!