The attachment kit is made of stainless steel and brass. High hardness, wear resistance, rust prevention and corrosion resistance STANDARD SPECIFICATIONS - nozzle capable of 4000 PSI maximum pressure, standard 1/4-inch quick connect, 2.5mm orifice size, 2.5 GPM, withstands a maximum temperature of 212F. Adapters include M22-14 swivel + 3/8 inch plug, 3/8 inch QD + M22-14 male. Provides safe, quick connectors for easy assembly and disassembly Contains 5 pieces of nozzles, including (red 0, yellow 15, green 25, white 40, black soap) 2 pieces adapters The nozzle is mounted on the tip of an electric wand, making it quick and easy to clean house exteriors, cars, wheel wells, decks, gardens, fences and other hard-to-reach or clean places on a daily basis. adapters are used to connect power washer guns, hoses and pumps. Install and remove hoses easily and quickly. Material: Metal colour: As shown Package Contents: 5 x 5 color nozzles 1 set x water pipe brass connector 1 x raw material tape (Note: Random color, don't accept the specified color.) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.