This Mat Drag is the most sought after field grooming devices made in decades! The Eraser will even work in adverse, damp soil conditions opposed to the standard metal drags which will "load up" and actually make your playing surface unlevel or unsafe. As you pull the mat drag it will percolate and dry your material while leveling and finishing your field to a professional finish. The Eraser is so unique in design it will not harm your grass, mounds, or home plate if it inadvertently comes into contact with them. They're so remarkable you can use it to level and finish warning tracks, as well as to level and groom synthetic turf surfaces.