Razor sharp ceramic grain runs cooler reducing heat build-up during sanding and cuts 4 times faster. Heavy-duty polyester-cotton backing resists tearing and stretching, lasting 4 times longer than standard aluminum Oxide sanding belts. Bi-directional flush joint runs smoothly in both directions. Kevlar, heat-resistant reinforced joint for maximum seam durability. Premium resin bonding system provides increased durability and performance. Product is manufactured in South Korea. This product meets customer requirement.