What can i say...WOW!! these disc are awesome. I have a pit bull and she'll catch 2 to 4 rounds a day with just 1 super hero and 1 super star and they never puncture!! And they last for a couple of months, the only problem we have had is with the discs warping, but after hundreds of catches this is to be expected; and they still fly pretty good after the warping. I used to buy cheap discs that wouldn't last 1 round, not any more. I will never buy another dog disc that's not a Hero disc!!