Check the listing for details. SecurityMan Double Door Lock - Solid 1/2" Unibody Aluminum Silver. Color: Silver, Condition: New. Listed at 70.64 USD. SecurityMan Double Door Lock - Solid 1/2" Unibody Aluminum Silver Product Details Manufacturer: Mace Group Inc / Macally Peripherals Part Number: DDSECURITYLOK Item Weight: 1.7 pounds Product Dimensions: 10 x 2 x 2 inches Item model number: DDSECURITYLOK Color: Silver Included Components: 1 Batteries Included?: No Batteries Required?: No An Extra Layer of Security: Our double door lock strengthens your home's security by adding an effective second defense layer, providing additional protection even if the main lock of your door is compromised. Immediate Response Advantage: In moments of attempted forced entry, this barricader grants homeowners critical time to react, boosting their ability to protect their premises and loved ones. Arm and Disarm in Seconds: Built for simplicity, it secures double door entry points by clasping over two door knobs with a 1/4" pin that can be armed and disarmed in seconds. Adjustable for Various Doors: The door barricader has 3 pin slots to accommodate a wide range of double door knob sizes/widths and a reversible design for any door orientation. (6 3/8") (6 7/8") (7 5/16"). Great for double doors and French doors. Solid Unibody Construction: Built from a single piece of 1/2" thick solid aluminum that weigh 2lbs, this bifold door lock provides formidable resistance against forced entry.