Grit Guard Washboard - BlackThe Grit Guard Washboard works in conjunction with the Grit Guard Insert in your wash bucket to separate the grit from the mitt! Like it's sister product, the Grit Guard Insert, the Grit Guard Washboard has NO flat surfaces for dirt or grit to be collected. Contaminants are extracted from cleaning tools while rubbing them on the downward stroke against the Washboard. Particles such as dirt, grit and grime from your wash mitt are the root cause of