I bought these made by another company 3 years ago and they are awesome. I found this brand on Amazon and decided to order them. Big mistake.I bought them in June of 2011 for use early in 2012. I took them new out of the package about 7 weeks ago and put 5 of them around tomato plants just as I did the other brand.Three have already failed due to the seam between the tubes splitting. Sorry piece of junk that didn't even last 1 season. Guess I won't be buying these again.