This waterproof flood barrier is manufactured from medical-grade ABS plastic with UV-resistant coating and precise 5.2mm thickness, perfectly balancing high strength and lightweight properties. Weighing only 3.8KG per piece and functioning in extreme temperatures from -40° to 95°C, its unique efficient water-blocking design allows single-piece deployment in 15 seconds. Four specifications 52x70cm/52.5×80cm/80×100cm/75×100cm meet various disaster relief needs with over 98% water-blocking efficiency to protect lives and property.