Check the listing for details. Battle Max Rival Force Marker Ball Projectile Backpack Shoulder Harness Franklin. Condition: New, Made in China. Listed at 8.99 USD. Unleash your competitive edge with the Battle M.A.X Rival Force Marker Ball Projectile Backpack Shoulder Harness. Designed for the ultimate gaming experience, this harness is crafted to provide comfort and ease of movement, allowing you to stay in the game for longer without compromising on performance. The Rival Force model is a testament to precision engineering, manufactured in China with a focus on quality and durability. The intuitive design seamlessly integrates with your existingBattle M.A.X equipment, ensuring a smooth and efficient gameplay. The backpack shoulder harness is perfectly suited for the enthusiastic gamer looking for reliability and convenience. With the Rival Force at your side, you're equipped to dominate the battlefield.