If you are looking for a long-lasting and reliable solution to complete your project, this high-grade product is right up your alley. This product will surely help you make any job faster and easier. It is for utilizing the finest materials. The most commonly used abrasive is Aluminum oxide. It is best suited for typical purpose blending and deburring, economical, and fracture-resistant. It is also for fiberglass, aluminum, wood, and stainless steel. The PS33 PSA sticky back paper discs come with a pull tab for easy backing removal while wearing gloves. Key Features: Resin Bond Semi-Open Coat Stearated to retard loading Long-lasting abrasive discs It has maximum resistance for loading and clogging, which increases your productivity and reduces material consumption. 100 discs per box.