Sand-Light hook and loop blending discs are constructed of thick, non-woven synthetic fiber. These discs offer less aggressive cutting than traditional surface conditioning discs. Use the slowest speed possible for optimum results. Hook and loop fastening system allows for quick changes and less downtime. Backing pad required, see chart in product images to determine the correct part. Discs are available in two grits: Medium (Brown) for minor finishing and blending applications, and Very Fine (White) for final finishing prior to buffing with compounds. Used for aluminum, ferrous and non-ferrous metals, and stainless steel. Package of 10.