Rough Medium Fine Sandpaper Blocks Sanding Sponge Metal Woodworking Emery
A sanding sponge makes an excellent foot file. The coarse/medium grit ones work best for me and are typically available at Dollar Tree or 99¢ Only : r/lifehacks
Sanding Sponge 60 80 100 120 180 220 Grit Sanding Block - Temu United Kingdom
Lixxur Sanding Block - Reusable Sanding Sponges for Wet & Dry Use Sandpaper for Wood with 6 Grits(40/60/80/120/180/220) Washable Coarse & Fine Sand ...