Package and Material 10Pcs drip irrigation sprayers and 10pcs locked tee.Made of hard plastic parts.anti-pressure,anti-aging and anti-ultraviolet.Attention please:1/4 inch tubing in the image is NOT INCLUDED. It is just an effect display. Please prepare tubing separately before using emitters Adjustable 360 DegreeFlexibly adjustable water flow while using emitters.You can adjust the water flow mode and sprinkling distance by rotating the cap.Diameter from 0 to 10 feet. Besides,emitter cap can be opened for check and cleaning MeasurementEmitters and tees:works perfectly with 1/4 inch drip irrigation tubing, ideal for 4mm(inner)-7mm(outer) garden watering system;Irrigation dripper stake height: 5.5 inch.Please pay attention to the specifications before purchasing Quick and Leak-proof Easy to install without any other tools.Just push the tube firmly onto the barb and tighten the nut. Locks increases the tightness and will not leak.1/4" Tee barbed connectors can be used to create a three-way branch layout for your drip system ApplicationOur drip irrigation parts can be widely used in gardens, grow bags,pot plants greenhouses, patio vegetable gardens, flower beds, terraces and lawns, and other agricultural irrigation