Package Include25 drip emitters, 25 barbed coupling (on the emitter, take it down for using), enough to create a small irrigation system. The dripper is 5.3'' long, can be stably installed on the soil directly. Ajustable FlowFull circle water flow, adjust the water spray from 0 to 20 GPH by rotating the cap, and the diameter of sprinkling circle accordingly from 0 to 1.5 feet. 30 PSI max working pressure. Can be turn off separately. Durable, easy to cleanDripper made of PP-Plastic, corrosion-resistant and anti-aging, suitable for long time application in irrigation system. The dripper is removable and easy to clean, you don't have to worry about clogging. Useful watering kitDrip emitters with stake can be used as drip emitters for potted plants, garden dripper for healthy vegetables, flower bed sprinkler for long-lasting roses, drip bubbler for fruit trees, or as drip sprayers for the lawn. Enjoy healthier plants with less cost and work. Easy to use(1) Connect the drip emitter to 1/4'' drip irrigation tubing. (2) Using the barb coupling to connect the 1/4'' tubing to tubing mainline. (3) Stick the dripper stake into the soil, adjust the desired irrigation spray width and feed your plant with your own drip irrigation emitter system. TIPSSoaking the hose in hot water for a few seconds, that will make the installation process much much easier, what you need is just put a cup of hot water beside you.