This upholstery tool has a see-through window for the sole purpose of letting you know when you've pulled all the soap, or solution out of the upholstery that you're cleaning. It comes with a convenient carry bag, and attaches directly to the back of our Trusted Clean 7 gallon professional extractor. The tool is attached to a 15' solution & recovery hose for extended coverage of upholstery cleaning. Reaches into hard to reach areas, clean stairs, and excels at cleaning furniture. The hand tool has an enclosed spray system, which ensures there is no overspray what-so-ever!