Diablo, 4-3/16 in. x 11-1/4 in. 220-Grit (Ultra Fine) SandNET Reusable Drywall Sanding Sheet, Diablo's Sandnet Drywall Sheets With Reusable Sanding Technology Are The Most Advanced Sanding Sheets On The Market With Up To 10x Longer Life Versus Standard Sanding Sheets. Each Sandnet Sheet Features A Clog-Reducing Nylon Net Design Coated In A Premium Ceramic Blend Grit For Fast Material Removal While Reducing Material Build-Up. These Innovative Sheets Are The Premier Solution When Seeking Ultra-Smooth Finishes When Sanding Drywall, Mud And Plaster From Medium To Large Surface Areas. The Sandnet Design Is Easy To Clean And Reuse Multiple Times By Simply Shaking, Vacuuming, Or Rinsing The Sheet To Remove Any Pitch Build-Up.