3M Xtract Disc Pad Hook Saver 20443, 5 in x 3/4 in 31 HolesGeneral Information Brand Hookit Abrasive Attachment Type Hook & Loop Function Attachment Style Hook & Loop, Coated Abrasives Hook Type 2 Product Type Back up Pad Type Dust Control Country Of Origin Taiwan Sold As Case California Residents Proposition 65 Warning Dimensions and Specifications Center Hole Diameter (Imperial) 0. 75 in Center Hole Diameter (Metric) 19. 05 mm Maximum Speed 12000 mps Net Weight (Imperial) 0. 08 lb Net Weight (Metric) 36. 29