The ultimate wand for any pressure washer. There are 2 wands, one goes to the 1/4" quick coupler and the other goes to a low pressure soap nozzle. Twisting the side handle allows you to vary the pressure. When you twist all the way to allow only water to come out of the soap nozzle, your down stream chemical injector will begin to draw in detergent. When you twist the other way, the injector will stop the flow of detergent and you can rinse with high pressure. The ultimate in comfort and convenience. Use at up to 4000 psi. Total length of 41". Both lances are 1/4" stainless steel.