1.Emergency water supply in fire site 2.Self support when loading water to tank 3.Can be folded after use Features: Constructed of heavy dutyurethane fabric or fabric with PVC coating. Benefits: 1. Self support no frame or parts to assemble 2. Quick setup and dismantle times 3. Unique flotation collar on inflation required 4. Low maintenance easy to clean and repair 5. Heavy duty construction for durability. carton box