The TRX Slam Ball 40 lb / 18 kgs is engineered for intense functional and strength training. Its sand-filled core eliminates bounce, ensuring stability during slams. The textured rubber exterior offers a no-slip grip, making it ideal for dynamic exercises that boost strength and flexibility. Built to endure rigorous impacts, the TRX Slam Ball's double-walled design maintains its shape, even under heavy use. Its 60-Durometer rubber provides comfort, while the durable construction withstands repeated slams against non-concrete surfaces, enhancing your workout's intensity. Perfect for both individual and group training, the TRX Slam Ball elevates your fitness routine by combining strength, cardio, and balance exercises. Its versatility makes it a staple in gyms and sports clubs, offering a comprehensive workout with just one piece of equipment.