Check the listing for details. 50× 2 inch Medium Surface Conditioning Discs Roll Lock Die Grinder Sanding Pads. Color: Maroon, Condition: New, Made in United States. Listed at 17.83 USD. Description: Open-Web Construction of Non-Woven Cloth: Non-woven cloth consists of a web of nylon fibers, which are bonded together and saturated with abrasive grains. This produces a cushioned, three-dimensional material that is pliable, flexible and very long-lasting. The unique construction helps resist loading, run cool, allowing for consistent finishes, and also extend the life of the disc Quality Imported Nylon Fibers Material and Aluminum Oxide Abrasive: European imported nylon fibers material and sharp aluminum oxide abrasive, provides faster cut rate for consistent finish and higher performance than competitive discs Thicker Disc: Our non-woven surface conditioning discs are thicke.