3M Hookit Disc Pad 77751B, 8 in x 5/16 in 5/8 in-11 internalGeneral Information Brand Hookit Abrasive Attachment Type Hook & Loop Function Attachment Style Hook & Loop, Coated Abrasives Hook Type 1 Product Type Back up Pad Type Regular Country Of Origin United States Sold As Case Lead Time 34 days California Residents Proposition 65 Warning Dimensions and Specifications Overall Diameter (Imperial) 8 in Overall Diameter (Metric) 203. 2 mm Overall Thickness (Imperial) 0. 31 in Overall Thickness (Metric) 7. 87 mm