COMMERCIAL GRADE TRAINING TOOL This industrial grade Soft Wall Ball is the perfect choice for a home gym, gym or cross training facility. The hard wearing PVC outer skin and durable stitching is built to last through light or rigorous workouts. MAXIMIZE YOUR WORKOUT Challenge yourself and your fitness goals with this heavy duty wall ball, designed with a fiber core weighted with sand for maximum resiliency. This ZIVA Medicine Wall Ball is perfect for improving strength, speed and everything in between.