Professional flood barrier system made of high-strength ABS plastic with 99% leak-proof rate, weighing 3.8KG per panel with 5.2mm thickness. L-shaped structure utilizes water pressure for self-locking, requiring no tools for quick deployment, becoming the preferred choice for government flood control material reserves. Suitable for urban waterlogging, river flooding and various natural disaster scenarios, capable of deploying 100 meters of defense line within 20 minutes. Proven effective in 53 cities nationwide for flood control projects, protecting communities and critical infrastructure.