Double Door Security Lock,French Locks with 4 Keys All Metal Reinforced Lock Safety U-Shaped Bar Barricade Prevent Kicking in

VISIBLE SECURITY DETERRENT: This steel U-bar sits across both door handles and is clearly visible through glass — intruders see a reinforced door and move on. Made of quenched steel, not plastic or aluminium, so it holds firm even under heavy force. NO DRILL, NO TOOLS NEEDED: Slide the lock over your two door handles, turn the key — done in seconds. No screws, no holes in your door frame. Works straight out of the box on French doors, patio doors and conservatory doors. ADJUSTABLE FIT FOR MOST DOUBLE DOORS: The sliding lock bar adjusts from 6.5cm to 19.5cm (2.5–7.7 inches) to grip handles at different spacings. Fits round knobs and lever-style handles on uPVC, wooden and aluminium French doors. ALL STEEL CONSTRUCTION WITH 4 KEYS: While many similar locks use plastic shells or aluminium clips, this lock is built entirely from quenched steel — lock body, U-bar and sliding rods. Comes with 4 keys and a waterproof storage pouch for quick access. WORKS ON MORE THAN FRENCH DOORS: The 1-3/8 inch U-bracket opening grips the neck of most double door handles. Also fits barn doors, garden gates, double-door refrigerators and any paired handles spaced within range.