Better than expected
When I first considered ordering these I thought they were just heavy water polo balls. I ten learned they were a smaller size and was intrigued. When we got them, I realized they were the perfect size. Yes, the kids can handle a bigger ball, but when you add the weight it gets harder to handle. This simplified it because they can handle it better, which removes that element and simply adds weight to their throwing. We use this in a number of drills and I like it a lot. A key was getting enough of them that I could put kids in groups of 2 or 3.
This ball is perfect for training and conditioning in various capacities. We have our field players use the ball to focus on wrist snap, doing repeated wrist passing to strengthen forearms for added power and snap in their shot. In addition, all of our players use these balls for our leg conditioning: once we are about 2 weeks into a season and have established base-conditioning with the regular ball, we substitute this Heavy Trainer and have players pass back and forth with two hands, carry the ball laterally, or work at 100% with the ball for 10 seconds on and 10 off. It's amazingly versatile and the balls last, seemingly, forever—we’ve never had to replace one and we use them consistently. We have 12 for our program and they are the primary go-to for our conditioning.