Specification: This product is made of stainless steel, which can resist corrosion & rust and withstand the toughest abuse. Designed to clean large surfaces of 18", it is efficient. The nozzle diameter is designed to be 0.8 mm for strong pressure, but it is easy to be blocked. So please ensure the water is clean. If the water pressure is significantly reduced or there is no water during use, you can disassemble and clean the nozzles. The handle is angle adjustable to suit different needs. The joints are smooth. Trigger gun has a 3/8-inch quick connect female inlet plug to connect the pressure washer hose. .