SECURITYMAN Sliding Door Security Bar-Child Proof Sliding Door Lock Bar with Anti Lift Lock - Fits Most Doors & Windows - Adjustable Patio Door Security Bar (18.75"- 51.1") Chrome

It was extremely easy to install and now I feel more secure.

A stick in the bottom of the door would do the same thing, but I do feel a bit more secure. My patio faces a moderatly busy road. I'm sure it says somewhere on the product details, bit you do need a drill (1/8 bit) to install.

This is a bad design and was cheaply fabricated. It is very flimsy. The bar is too short to work without the extension and is too long with the extension. The designer was bad at matb so the bar will not work for some door openings within the advertised range without adding a 1" wooden shim. The clip that prevents the bar from sliding to a shorter length does not always work, sometimes it collapses without depressing the clip. The black plastic foot at the end that fits into the retaining bracket is about 3/16" too small. The dimples in the rotating bracket that hold the bar upright when the bar is unlocked are easily sprung too wide which will allow the bar to fall into the locked position thereby locking you out of your iwn house. Fortunately the bar is so flimsy that a few strong pulls will defeat it and allow reentry if it locks you out. The rotating bracket is wobbly so the bar does not pivot in a smooth arc. The rotating bracket mounting surface is about 1/4" too short so the bar partially blocks the mounting holes thereby making it hard to use longer screws that would actually engage the wall studs. This is not nearly as good as the one I bought for a previous house. This will just be a temporary supplement to the broomstck in the track until I have time to fabricate something better and stronger.

I am not very trusting of the efficacy of this product. The metal is very thin and it is held by a piece of plastic. Seriously doubtful that it would hold back a persistent person. Will have to look for alternatives.

I bought this to keep pressure on my sliding glass door after installing a sliding glass doggy door. I kept a decent amount of pressure on it but not an absurd amount. It was very easy to push it down in place. Required maybe 10 lbs or pressure to do so.As for the design/issue. The locking mechanism uses a thin somewhat sharp piece of metal which locks against the rather cheap soft plastic insert that is provided. It seems the locking clip dug into the plastic and created a gap/hole as well as a plastic “wall” behind the locking clip. This made it so the clip gets stuck and the bar can no longer be adjusted with the “pin” to make it a the right length. Rendering it pretty much useless. You get what you pay for I suppose. But seeing as this is made to keep out intruders. I would imagine if anyone tried with any real force to open the glass door. Well you’d likely have to buy another one afterwards. Maybe I got unlucky but I feel this problem would be fairly easy to reproduce regardless. But if you are like me and using this to apply constant pressure and not just to “lock” for intruders. I’d spend a little bit more and get a high quality one.

Great product! Easy to install and made of strong material. No more bending down to pick up the board that I put in the track.

Walked outside to grab something real quick, but must have not pulled this bar all the way up, so when I closed the door it slid back down.I couldn't open my door, so it did it's job. You would have to break the glass to get through this door with this installed.

The instructions that come with this product basically list the parts and tell you to drill holes and screw in the brackets. The first problem is that it's not easy to hold the bracket on the door frame to mark the holes. A small template would have been helpful. Also, the parts include a bracket for holding the bar in the upright position but there are no instructions on where to install this bracket and they don't include enough screws to mount it. It appears that this bracket is intended to clip to the release clip on the bar when it is in the upright position but even if it is positioned perfectly, it doesn't work very well. I won't use it and I will try a magnet as suggested by another reviewer. Finally, the bar itself seems a bit flimsy and I wasn't comfortable with the plastic release lever holding up to long term use so I installed a screw where the 2 arms meet (also as suggested by another reviewer).