Our AIR-TIP Non-Marring Utility Nozzle Kit has non-marring edges to protect surfaces from getting marred when cleaning. A specialized resin allows each tip to be used on finished surfaces without marking up the area. The vacuum accessory kit includes a Crevice Tool and Utility Nozzle, which both have non-marring edges indicated by the black surface. The MILWAUKEE AIR-TIP Non-Marring Utility Nozzle Kit is compatible with other wet/dry vacuum brands with 1-1/4in, 1-7/8in, 2-1/2in diameters, and is part of our AIR-TIP family of Trade Focused Vacuum Accessories.