Champro Underload Training Baseballs The Champro Underload Training Baseballs is a practical baseball equipment option for baseball players, coaches, teams, and training programs. Strength builds best through variety. This set of six weighted training baseballs, ranging from 3 to 11 ounces, allows for precise workload progression. Striped patterns provide visual feedback during release, helping athletes pair arm development with improved throwing velocity. Key Features Builds arm strength and throwing velocity through weight variation. Stripe pattern allows monitoring of pitch rotation. Durahide cover for improved durability. Includes training program. A useful addition to a complete baseball equipment setup for practice, competition, coaching, training, and team programs.