Grit Guard is a radial designed insert that fits in the bottom of any 3.5 to 7 gallon bucket and cleans your wash mitt, brush, towel, or other washing utensil. The whole idea behind Grit Guard is to protect your precious painted surfaces from being scratched. Grit Guard is a product that simply works - it separates the grit from the mitt. Grit Guard prevents the swirl marks in your paint, caused by improper washing. The product's radial designed surface extracts particles such as dirt, grit, and grime from your wash mitt, providing a clean, scratch-free wash mitt, every time you go back to the bucket for water.