It is a nozzle head. It can make a spectacular effect. Used for garden fountain spray irrigation, watering, etc. Full of white water column due to the incorporation of air bubbles to form white jade-like spectacular water vertically upwards within throwing ability, water combination, landscape effects. Material: Stainless Steel Specification: Length: Approx. 16cm/ 6.30inch Diameter: Approx. 6.3cm/ 2.48inch : DN25 Pressure: 60-180 Kpa Water Jet Volume: 3.6-6.0m3/h Jet Height: 2.0-7.0m Color: Silver Package Includes: 4 Pieces Frothy Fountain Nozzle Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.