The package includes: You will get 20pcs drip irrigation emitter in total, and each drip emitter is 17.5cm/6.89inch in length, enough for your garden management or plant growth. > 360 Degree Adjustable: Kalolary 360° Drip Irrigation Emitters 8 Hole Full Circle Spray Pattern, Adjustable Flow Rate Irrigation Drippers, Spray Radius Can Be Adjusted From 0-50cm/ 19.7 inches, you can adjust the amount of water by twisting the outer cap to open or block the holes, reducing water waste. Humanized design: adjustable flow rate from 0 to 120 L / H - 1/4'' (4-7mm) drip irrigation hose fit - professional grade drippers for drip irrigation. Please be sure to put the connected part into 70~80° water for 10 seconds before assembly. When cooled, the tube will keep tight. High Quality: These drip emitters are made of quality material, with strong compressive strength, corrosion resistance, light weight and durable. wear resistance, which can work for a long time. Besides, the bottom of the dripper is sharp and durable enough to fit into the ground more easily. Wide Application: The drip irrigation emitters can be used in low pressure situation. Suitable for pots, tubs, ground cover, landscape gardens, flower beds, vegetable gardens, greenhouse, orchard, lawn, self-planting, watering herb gardens, etc.