Brass / 0.012 inches (0.3 mm) orifice, screw into any 10/ 24 UNC threaded mist nozzle openingBEST FOR OUTDOOR USE WITH COULD WATER: Widely apply for landscaping, outdoor cooling system, greenhouse, humidification, spraying disinfectant, epidemic prevention, deodorant air purification, small fountain, etcOperation Pressure: 20-70kg/cm; Flow Rate: 80-145ml/Min Water Use: 1/2 Gallon of water per hour per nozzleLeak-proof, self-sealing o-ring included with each nozzle, easy to installColour:Brass colorMaterial:BrassSize:1*0.5cmPackage Contents:20 * SprinklerOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.