Brass orifice / 0.012 inch (0.3 mm), easily screw into any 10/24 UNC threaded mist nozzle opening BEST CHOICE FOR OUTDOOR USE WITH POWER: Widely apply for landscaping, outdoor cooling system, greenhouse, humidification, disinfectant spraying, epidemic prevention, deodorant air purification, small , etc. Working Pressure: 20-70 kg/cm; Flow Rate: 80-145 ml/min Minimum Usage: 1/2 gallon per hour per nozzle Waterproof and self-sealing O-ring included with each nozzle, easy to install Color: Brass Color Material: Brass Size: 1 x 0.5 cm Package Contents: 60 x Sprinkler Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in a little different from the real thing. The measurement allowed error is +/- 1-3 cm.