The professional foam spray works perfectly for cleaning your car, adjustable spray nozzle, saves your time and energy, saves water and eco-friendly. It is compatible with Karcher K2-K7 sprayer machines. Features: Foam lance with foam adjustment button and spray angle button, you can rotate the nozzle to change the spray pattern. The dial at the top to control foam mixing, the bottle surface has a measuring guide line, easy to adjust the mixing ratio. Made of premium quality material, long using time. 750ml of large capacity, makes soft and fluffy snow foam, fun and simply, your car wash without touch. Compatible with Karcher K2-K7 sprayer machines. Specifications: Material: Brass nozzle + Nylon cover + HDPE bottle; Bottle Capacity: 750ML; Item Size: 210 * 190 * 80mm / 8.27 * 7.48 * 3.15in; Package Weight: 300g / 10.58ounces; Package Size: 220 * 200 * 95mm / 8.66 * 7.87 * 3.74in; Usage: Step 1: Put the shampoo or wash powder & water into the bottle. Please confrim the proportion of shampoo and water is correct Generally, 20% shampoo & 80% water is suggested; Step 2: Shake it. Step 3: Complete the connection. Warm Prompt: 1. You can get the very thick foam like the above photos if your pressure washer can create 150Bar pressure at least, and your cleaning shampoo is concentrate shampoo. 2. A pot of liquid in the foam lance can spray the whole car two or three times to achieve the effect of covering the whole car with rich foam. 3. Clean it after use, preventing the blockage of the internal foam filter from affecting the next use. Packing List: 1 * Throw Foam; 1 * PA Bottle; 1 * Straw