The set includes 16 garden arrow drippers, 16 3/5mm hoses and 4 regulators, meet your needs. Seepage irrigation design, irrigation along the plunger to avoid erosion or erosion of the soil matrix. Used with a pressure compensating dropper, increase pressure compensation and prevention of leaks. simply connect it to the hose and 3/5 regulators, which you can achieve precise and even drip irrigation. Mainly used for drip irrigation of flowers, fruit trees, plants potted, vegetables, herbs and so on. Specifications: The set includes 16 garden arrow drippers, 16 3/5mm hoses and 4 regulators, meet your needs. Seepage irrigation design, irrigation along the plunger to prevent soil matrix erosion or erosion. Used with pressure compensation dropper, increase pressure compensation and leak prevention. just connect it to the hose and 3/5 regulators, which you can achieve precise and even drip irrigation. Mainly used for flower drip irrigation, fruit trees, potted plants, vegetables, herbs and