https://www.ebay.com/sch/i.html?_nkw=3M+00051111669013+Arbor+Mt+Sanding+Disc+7X7+8+24G+Pk100&_sacat=0&_dmd=2

3M 00051111669013 Arbor Mt Sanding Disc, 7X7/8, 24G, Pk100

Regular price
$432.00
Sale price
$311.00

Fiber Disc, Disc Dia. 7 In, Mounting Hole Size 7/8 In, Abrasive Type Coated, Abrasive Material Ceramic, Grit 24, Grade Extra Coarse, Backing Material Fiber, Backing Weight YF, Max. RPM 8600, Series 983C, Vacuum Hole Design No Hole, Color Brown, Package Quantity 100