Material: Polyethylene & Polypropylene(not low quality nylon) Polyethylene & Polypropylene are the industry standard materials for high quality poultry netting. These materials are designed for continuous use in high UV areas. The UV protection is actually built into the material, not just a surface treatment. The stretchy Nylon netting I see sold on other sights might, or might not have a UV surface treatment that will flake off in a couple of years. I hear from my customers again and again that the nylon netting sold by my competitors is falling apart soon after they spend their valuable time installing it. I purchased a canoe in 2012 made out of Polyethylene. These materials, Polyethylene & Polypropylene, last for years even in tropical, high UV areas. Longevity: 7 to 10 years in high UV areas is what is advertised, but my Grandfather had some of this same netting in continuous use for over 20yrs. and it was still good netting. I have some of it on my farm that has been in use for over 10 years, and it is still very good netting. Nearly Invisible: won't mar the look of your property Easy Installation: Lightweight pliable & maintenance-free Installation tip: You can purchase the cable ties, hog rings, or zinc snap clips to secure your net on our website supplies page. If you are going to be taking the net down periodically, I highly recommend the zinc snap clips) First secure the net to one of the short sides of your pen. Pay careful attention to the uniformity of the squares. They should be square not distorted. Then work your way about 2 ft. down one of the long sides. Switch to the other side. Go about 2 ft. Work your way back and forth about every 2 ft. for the entire length of your pen. While installing, pay attention to the overall look of the net. Keep the squares uniform for a better looking pen. Overly tightening the net will shorten the lifespan. Useful for: Raising any type of poultry, pheasant, waterfowl, etc. Garden barrier. Protect your fruit trees from birds and other animals. Contains golf balls for a driving range. Keeps leaves out of your pond or stream. I recommend the heavier netting if you live in a snow and ice area. The knotted is supposed to have less surface area for snow and ice to cling to, but I have always used the American made knitted. Most of the netting I am using is the light knitted. All this netting is black in color which makes it nearly invisible so that it won't mar the look of your property. I support my netting with a heavy 9 gauge wire. You can also use air craft cable, or I have a neighbor that supports his netting with green house frames. Why Buy From Us? We are a family business started by my grandfather over 50 years ago. We intend on being in business for another 50 years. We have over 20 years' experience with netting & have shipped to 10s of thousands of customers worldwide. We only sell quality, well made products. Nylon vs. Polyethylene Our Polyethylene nets, the UV inhibitors are inside the Polymeric blend that gets extruded into the individual fibers. These fibers are twisted or braided into twine. Since the UV inhibitor is built into the fibers, it can't wear off. Polyethylene doesn't absorb water, doesn't rot, and loses very little strength year to year. Their Nylon nets are coated with a UV inhibitor which tends to wear off in a year or two. Nylon absorbs water, encouraging mold, mildew, and rotting. See picture above. Typically a new nylon net used outside in direct sun will lose 15% to 20% of its tensile strength each year.