This door stopper security bar, with its unique lever design, combines ease of use, portability, high strength, and versatility, specifically designed to enhance security at home and during travel. Its adjustable length ranges from 21 to 46 in., and weighs only 2.2 lbs., making it convenient for carrying and storing. Made with high-strength alloy connections and a thickened 1.57 in. pipe diameter design, coupled with high-strength fiberglass plastic components, it can withstand up to 350 lbs. of force, ensuring that even a heavyweight boxer ft. s strength would find it difficult to break through. Furthermore, its quick-deploy three-stage structure allows users to swiftly reinforce their defenses without complex operations, while a 3-month customer service guarantee provides additional peace of mind. Whether reinforcing doors and windows at home or adding security to hotel rooms, this door stopper security bar is the ideal choice.