The TRX Slam Ball 10 lb / 4.5 kg is engineered for intense functional and strength training. Its sand-filled core eliminates bounce, allowing for powerful slams and throws to boost strength and flexibility. Ideal for full-body workouts, it elevates heart rate and enhances training intensity. Crafted from durable rubber with a textured tread exterior, the TRX Slam Ball offers a no-slip grip and bounce-resistant design. Its double-walled interior ensures durability, while the 60-Durometer rubber provides comfort during heavy use. Not suitable for concrete or pavement surfaces. Slam Balls are essential in modern training, offering a versatile tool for strength, cardio, and balance exercises. Unlike medicine balls, they withstand significant impacts, making them perfect for throwing exercises. Available in various weights, they suit all fitness levels.