Product Description Available only from Brunswick, Siaair Micro Finishing Pads last longer than the current industry standard. Even better, the high performance abrasive and three-dimensional net structure provide a consistent finish for more bowling balls with less scratching. One single pad of selected grit.Features: Ideal for restoring a micro finished ball back to its out of the box surface Siaair pads are waterproof and washable Available in multiple grits: 240, 360, 500, 800, 1000, 1500, 2000, and 4000