Vktech&reg; 30Pcs 2in1 Adjustable Misting Irrigation Drippers Sprinkler Emitter Sprayer With 18cm to plug for easy plug in pots Can be adjusted the water changes and switched off individually, easy to use Comes with barb, you can easily connect PE pipe and drippers Suitable for 2mm/4mm (Inner/Outer diameter) tube Garden flower beds, shrubs, trees automatic irrigation