Blackstone 7-Inch by 0.875-Inch Z Flap Disc, Grit-36 0818699 T29 | eBay
Norton Redheat 7-in Ceramic 40-Grit Flap Disc in the Abrasive Wheels department at Lowes.com
Dropship Flap Discs 4 1/2 Inch Flap Wheel Type 29 Flap Sanding Disc With 7/8 Arbor Aluminum Oxide Abrasives For Grinding, Blending, Sanding And Finishing - 20 Packs to Sell Online at a Lower Price | Doba
Milwaukee 48-80-8032 7 in. x 7/8 in. Flap Disc 80 Grit (Type 29)