I recently got a puppy, and was concerned about her being out on my balcony and jumping through the wide railings. In addition, I wanted to make sure that her toys didn't fall off into my neighbor's patio below. I purchased this, and installed it last night. The netting comes with matching black zip ties, which makes the process of installing really, really easy. You simply tighten the zip tie through the netting and around one of the railings, and tighten as much as you can. Then snip off any excess zip tie. I definitely have more peace of mind about my pup being out on the balcony now. Another plus is that the netting is not visually intrusive (you can see through it easily) and is not really that noticeable at all.