A 20mm Rocket Box is the perfect heavy duty dry box. The 20mm Rocket Box is most commonly used to store the spare tanks for the Eco Safe Toilet System. Note: Ammo Cans are recycled from the military. They are not in new condition. A Rocket Box Ammo Can can also be used on a river trip for storage of the day's camp supply needs: food, cooking supplies, and camp needs. Due to the size and weight of this item there will be an oversized shipping charge. Ammo cans are NOT in new condition they are retired from the military. 19in. x8.5in. x14.5in.