Rainbird Polyflex Stake Assembly, 12" 12 in. riser that is pre-assembled with a 7 in. (30.5 cm) stake Use with any 10-32 threaded emission device (Xeri-Bugs, PC Modules, Xeri-Bubblers and Xeri-Sprays) to deliver water directly to a plant Saves time and money when installing a low-volume irrigation system Extremely rugged and reliable PolyFlex Riser constructed of thick-walled, high-density polyethylene