
My two sons are 13 and 15 and I love it!. As we warm up, we'll start with regular baseballs. During the warm-up, we'll switch to 20-ounce PowerNet training balls. Gradually build up throwing power. When we go back to normal baseball games, we're going to feel like whistling balls. We haven't hit them yet, just thrown them. ADDITIONAL BENEFITS FOR TRAINING - Even young players have an increased need to use two hands when catching due to the extra weight!

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