The wall stays on the AIRE Quick Protector Berms™ snap into place by simply folding the walls up, easy as that. No tools, no additional people, and no loose parts required. The Quick Protector Berms™ is an all-in-one design and used for a wide range of applications. Most sizes are in stock and ready to ship, or, if you don't see the capacity you need, we can custom make your berm. Need more information? Call us at 800-247-3846.