Rep V2 Slam Balls for Strength and Conditioning, Slam Ball Exercises, and Cardio Workouts (5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 60, 70, 100 lbs) STRONGER AND MORE DURABLE: Our version 2 slam balls are meant to take the abuse of modern Cross Training workouts! We made the next-generation MUCH stronger with a 50% thicker shell and reinforced air nozzle so you can slam them over and over again without fail. BUILD STRENGTH AND POWER FASTER: The explosive, full body movement of slamming and picking up the ball quickly develops serious, functional metabolic conditioning. These are perfect for Cross Training and HIIT, where the slam ball is a staple of many workouts. CHOOSE YOUR SIZE: We offer a full range of sizes for any training need. Get a great cardio workout with the lighter weight slam balls, and use heavier sizes for strength training.Women typically train in the 10lb to 25lb range, and men in the 20lb to 40lb range. Kids and beginners do great on a 10lb slam ball, while a fairly strong man should be able to handle a 30lb slam ball just fine! DESIGNED FOR SERIOUS TRAINING: The balls are made of extra-grippy rubber shells filled with sand, so they have low bounce and are easy to pick up quickly. 30 lbs and under sizes are 9 inches in diameter, while 35+lbs get progressively larger as you go up in weight. Order today and get a full 1 year warranty for home use, 6 month warranty for commercial use. Rep Fitness is a full-service equipment company headquartered in Denver, Colorado. We carry a full line of strength and conditioning equipment including benches, barbells, dumbbells, racks, cardio equipment and more!