RAGE Fitness Slam Ball (10lb, 15lb, 20lb, 25lb, 30lb, 35lb, 40lb – SOLD INDIVIDUALLY), Cross Training, Strength Training… $19.99 – $120.99 Make sure this fits by entering your model number. Encased in an ultra-durable, heavy-duty rubber shell Rage slam ball is high endurance impact approved and performs in ways a medicine ball cannot