"Filters dirt accumulated in the wash mitt Places at the bottom of a bucket to allow dirt to remain in the bottom of the bucket. Dirt remains at the bottom of the bucket and are not transferred back into the glove Recommended use with Meguiar's RG203 and RG206 buckets Places at the bottom of a bucket to allow dirt to remain in the bottom of the bucket. fit_type: Universal fit Placed at the bottom of the bucket, the grid (diameter 26.3 cm) filters dirt accumulated in the washing glove. By immersing the glove in the bucket equipped with a filter grid, the dirt remains at the bottom of the bucket and is not transferred back into the glove. Suitable for all bucket diameters, the Grit Guard allows you to wash without risking scratching the body." Sold by the grid cool store