7 inch 24 Grit Diamond Cup Wheel Single Row Perfect For Use On Blocks Medium Hard Building Ricks Paving Slabs Concrete Roof Tiles and Other Medium Hard Materials Strategically Placed Hole Designs Help Ventilate Dust From Surface To Extend Life Of Cups Single Row For Fast Stock Removal Thick Body Allows For More Pressure When Needed Specifications. Size 7. Weight 10 lbs