The Orbit Micro-Sprinkler Stakes with Full, Half and Quarter Snap-On Nozzles pack includes a flow control knob to adjust spray distance from 5-feet to 10-feet. Sold in a bag of 5, these micro-sprinklers come with a 12-inch stake. It is simple to install and operate, making it easy to water your flower beds and plants in a manner that will keep them green and healthy without damaging them. The micro-sprinklers are for outdoor use with cold water only.