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. Advantage of OUR FOAM LANCE: 1. guaranteed to make thick and dense foam for all pressure washers. 2. both small and big commercial pressure washers can make thick and dense foam with the new design. Features： New Heavy Duty Design, ideal for enthusiast or professional use.Perfect for weekly maintenance, Safe for wax and sealant, Rinses clean with no residue.The Professional Foam Lance combines a high pressure water flow mixed with detergent and air to produce thick clinging foam.Variable spray pattern, from pencil tip to fan jet.Allows cleaning agents or disinfectants to be applied evenly over a large surface.Easy to use, Perfect for Driveways, Roofs, Siding, Cars, Trucks, SUVs.　.