Allstar Performance flap discs, 120 grit, 4-1/2in with 7/8in arbor, 5pk, for race car fabrication. Grinds and finishes metal for racing builds. Durable tool for track use. Item Package Dimension: 6.7L x 6.4W x 3.4H inches. Item Package Weight – 1.1 Pounds. Item Package Quantity – 1. Product Type – ABRASIVE WHEELS. .