Product Description
The Lock-it Block-it is an adjustable window Home Security and Safety bar. This burglar proof and childproof home security device is designed to keep windows OPEN at a safe height and SECURED. Block children from falling out of open windows. Block criminals from climbing in through open windows. The device offers what every security experts recommends - a physical way to secure your home windows. Four devices per order. Used to secure Single Hung Windows, Sliding Windows and Patio Doors. Intruders can't reach it from the outside when properly installed and adjusted. Children can't reach it (when furniture isn't near the window). Also used as a secondary window lock when windows are closed. Adjustable - extends from 17 inches to a maximum of 2 feet 6 inches long. The device sits in the window track or on the window sash with the head wedged into top corner of the window making it impossible to move. Supplied adhesive strips hold the device firmly in place. When the window is lowered, the device doesn't fall out. Made of two high-impact strength rectangular PLASTIC cylinders for a combined thickness of two nickels. Cylinders are locked together by a double-headed push pin. Rubber end caps for scratch protection. A series of 13 adjustable settings allows for windows to be Locked Open from 1 inch or more. Its smooth white finish blends in with the window and doesn't block the view. No tools required. IMPORTANT - MEASURE before buying - 1) Device will not fit in tracks narrower than 1 inch wide. 2) The device extends to maximum of 2 feet and 6 inches. 3) Fits windows and patio doors 3.5 - 5.5 feet high or wide. Measure from top window track to bottom window track - see photo. 4) Press the bottom pin head to adjust the device. 5) Not suitable for double-hung windows if the purpose is to prevent burglaries. 6) All three velcro strips must be used to prevent device from falling from the window. 7) Check device periodically to make sure it is still adhered properly.
Features
- HIGH-IMPACT RESISTANT, INDUSTRIAL GRADE DURABLE PLASTIC (ABS & PVC): Our window stopper helps to prevent intruders from entering through windows or sliding patio doors. Works great with window alarms for added security.
- EXTENDABLE & ADJUSTABLE: With 13 adjustable settings, our security bar is ideal for single-hung windows, sliding windows, and patio doors. When the window touches our sliding window security bar, it stops from moving further.
- QUICK & EASY INSTALLATION: No tools required. Adhesive strips hold the bar securely in place within the window track and can be removed quickly in emergencies. A great alternative to wooden blocks, our door safety bar is adjustable.
- ANTI-THEFT AND CHILDPROOF WINDOW SAFETY GUARD: Featuring a double-headed push pin for extra resistance against entry, our security bar is childproof and ideal for keeping windows secure. Protect your home with a sliding glass door security bar.
- MEASURE YOUR WINDOWS: Ensure a snug fit by measuring your window or door before purchasing. Our adjustable bar extends from 17 inches to 2.5 feet, making it suitable for most windows. Ideal for home security needs.
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Details were last updated on Jan 19, 2026 02:40 +08.