MATERIAL ---- The irrigation dripper is made of plastic, which is not easy to deform, reliable in operation, durable, and can be reused for many years. SIZE ---- The size of the garden sprinkler head is 21 x 12mm/0.8 x 0.5inch. It only needs to be installed in the PVC / PPR / PE pipe. VARIOUS NOZZLE ANGLES ---- Sprinklers have 90 degree nozzles (blue), 180 degree nozzles (green) and 360 degree nozzles (red). Each set contains different nozzles, which can be selected according to needs. EASY TO INSTALL ---- Firstly punch holes in the PVC / PPR / PE pipe, and then insert the bottom of the nozzle into the hole. The simple design of the nozzle ensures that the nozzle is clean and easy to clean. APPLICATION ---- The micro sprinkler is very suitable for watering potted plants, and also used for agriculture, lawn, garden sprinkler irrigation dripping, swimming pool mist spray cooling/irrigation, watering, etc.