PowerNet 2.8" 9 Pack Baseball Size Weighted Progressive Training Balls for Hitting and Batting, Build Strength & Mus Improve Technique, Training Equipment for Throwing (16, 18, 20 oz)

BUILD PROPER TECHNIQUE - PowerNet's progressive weight system builds on technique development. Start with the light ball and increase weight and resistance to the heavy ball. The Weighted Training Balls make sure that you are building the proper follow through on your batting and throwing technique. Use for both batting and throwing technique development for the hardest hits and throws. INSTANT FEEDBACK - Easily see how proper hits and mishits change the distance and trajectory of the ball. Correct form mid-drill. BUILD POWER - Develop muscle groups specific to batter and pitcher movements. Strengthen your swings and throws. Build power while warming up, dual-purpose workout. USED & ENDORSED BY PRO PLAYERS - German Marquez and Andrelton Simmons. International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.