TRX's best-selling Slam Ball features a grooved tire tread texture, no slip grip and bounce-resistant construction. Get ready for the ultimate cardio, agility, and strength training tool you’ve ever met. Build muscle, fire up your core, improve rotational strength and slam your way into the best version of yourself!

• Textured tread exterior for maximum efficacy
• No slip grip design
• Bounce-resistant construction
• Double-walled interior for maximum durability
• Sand filled inner shell to maintain shape
• 60-Durometer rubber for comfort during heavy use
• Not for use on concrete or pavement