Add some weighted resistance to your routine with the GoZone fitness ball. Perfect for squats, Russian twists, or playing catch with a partner, this versatile accessory can also be used for slam ball exercises. Tone muscle, build explosive strength, and have fun with your workouts with this small, yet incredibly versatile fitness ball. If youve hit a plateau using traditional free weights and resistance bands, this 8lb fitness ball is an excellent choice. It can reinvigorate your routine, help you burst through a plateau, and help you reach yo