8 HOLES DESIGN - Premium anti-clogging aluminum oxide abrasive material, long-lasting sanding feature. Pre-punched with 8 holes for efficient dust extraction. WIDE APPLICATION - 5 inch orbital sandpaper widely using in wood grinding, wall sanding, automotive metal polishing, furniture finishing. Almost all the polish work can be finished with them, and just choosing the right sandpaper grit for your project. UNIVERSAL COMPATIBILITY - These 40 grit sanding discs are suitable for matching 8 holes hook and loop sanding pad. Please note: There is a slight color difference or discrepancy in kind, please don't mind, thank you! Specifications: 40 mesh size: about 121mm Material: Alumina colour: Red-brown Package Contents: 110 x sandpaper Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.