Ideal Security's best-selling patio door security bar is now even better, with the addition of our childproof anti-lift lock! Add safety, security, and a visual deterrent to your sliding patio door. This prevents children from raising the bar and getting outside and protects against potential intrusion when the door is locked in an open position. No more bending down because the bar is mounted at arm height. Visual deterrent: mounting the bar in the middle of the door also adds a visual deterrent, making the bar clearly visible to potential intruders who won’t even bother trying. The bar can be easily adjusted and locked at any width, so you can lock your door in a slightly open position, staying safe while still letting in fresh air. Adjustable from 25-3/4" to 47-1/2" wide, the SK110 will easily fit most doors, so it can be installed with no cutting.