AV2 wall gap setting flooring installation tool allows perfect gap setting on starter rows of laminate, wood and any flooring material that requires a set starting row gap. Ideal for setting gap on walls that are not perfectly straight. Dial the desired gap (3/16" - 13/16" 5mm -20mm scale) and starter row is held off wall consistently for run of wall. Place AV2 every 2-3 feet along wall a start laying flooring. AV2 can be easily removed when floor laying is completed by simply turning the dial.