Water Timers Features: 1.Adjustable irrigation drippers are suitable for 4 mm or 7 mm drip tubes, each is approximately 13 cm / 5.2 inches in height; made of durable PP material with a long service life, not easy to break. 2.The adjustable irrigation drippers feature 360 degree water flow, and the water flow can be adjustable by rotating the water outlet hole cap, turning the cap on top to easily adjust water flow according to actual needs, save water resources and care your plants healthy. 3.Our water dip emitter is easy to install, without needing other tools, just push the stakes into soil and connect to the the 4 mm/7 mm or 0.16 /0.28 inch (inner/outer diameter) tubing, then water will be slowly emitted and automatically watering your plants. 4.To make attaching emitters to tubing much easier, soak the tubing first in hot water until softened before connecting the tube and dripper, always adjust water flow according to different watering requirements, watering conditions and water pressure. 5.The bottom of the dripper is sharp and can be easily inserted into the soil; suitable for ground plants, potted plants, landscapings, flower beds, vegetable gardens, herb gardens, greenhouses, orchards, lawns, natural plants, etc. You can use them to create a small water system in your garden to water your plants. Specifications: Material: plastic Package included: 10 /50 Pcs X Irrigation Dripper Dear buyers, we appreciate your business, if you are satisfied with our service, please leave us a positive