“I've planted small flags, put wind spinners and other marking items to make sure I did't run over a sprinkler head with a lawn mower. To no avail, I always managed to hit an average of 2 every season. Using these cement donuts will make it much harder for me to take out a spinkler. The sprinklers are happy, I'm happy and the cost of these donuts are much more reasonable than the time trouble and parts to replace one.”
