MIX UP YOUR ROUTINE: The Rhino Promax slamball offers a fun and unique way to get an effective workout without using traditional gym equipment. Incorporate our jumbo slam balls into your workout to improve speed, agility, cardio and core strength. SMOOTH, SUPERIOR GRIP: Brandishing our proprietary Rhino Skin leather shell, users experience a comfortable yet controlled, non-slip grip. The exercise ball’s large, ergonomic build makes it easy to throw, catch, and slam - even when sweaty. UNRIVALED STRENGTH AND PERFORMANCE: Offering more give and bounce than typical medicine fitness balls, our slam ball was built for significant wear-and-tear and extreme surface contact. Its durability will hold up to every slam, throw, or maneuver. FULL BODY WORKOUT: Slam wall balls challenge main muscle groups as well as smaller, stabilizing ones. Adding these heavy balls to aerobic activity, weight training, or exercise classes ensures a full-body workout from head-to-toe. Product use through repeated impact on rough surfaces or slamming it on the ground from overhead voids the coverage