Constructed from industrial-strength aluminum alloy for maximum durability and corrode resistance, ensuring long-term performance. Integrated leak-proof sealing strips create a watertight barrier, effectively preventing water ingress in basements and doorways. High-visibility black and yellow reflective warning strips enhance during nighttime use, reducing the risk of accidents. Modular devise allows for quick stacking and dismantling, with adjustable heights and lengths to fit various entryways. Versatile application for both residential and commercial spaces, ideal for garage entrances, basement windows, and outdoor areas.