Great sprinkler Pop-Up! I needed ones that were quality and not junk. I bought a lot of these and I'm very satisfied. I also really like the fact I can easily adjust the coverage area. It saved me from having to buy various sprinkler heads. I use them with Augustine grass that I cut at 4" in height, so these allow the sprinkler head to rise a couple of inches out of the grass, and the watering is excellent. I also used them with Flex Lines from Amazon. The combination  for me is absolutely perfect.