About This Top Quality Material: Constructed with high-quality aluminum oxide in a hard ceramic bond, ensuring long-lasting durability and efficient polishing Versatile Usage: Ideal for general-purpose polishing, light deburring, and smoothing of rough castings on various metals, from aluminum to stainless steel Precise Shape and Size: Features 7/8' x 7/8' triangular shapes, allowing for easy customization to match the contours of your part and avoid lodging in recesses Superior Finish: Provides a high luster finish, enhancing the appearance of your polished items Advanced Composition: Made of 49.6% silicon dioxide, 40% aluminum oxide, 5.5% potassium oxide, 2% sodium oxide, 0.4% iron oxide, and 2.5% calcium oxide, ensuring optimal performance Overview Material : Aluminum, Ceramic, Aluminum Oxide Grit Material : Aluminum Oxide Brand : INTERACTIVIA Grit Type : Medium Compatible Material : Aluminum, Ceramic