Item specifics: length of side: 90mm 6 holes High removal rate. All sheets are designed to be used dry. They are ideal for use on wood,metal and leather. Sanding sheets are manufactured from Aluminium Oxide abrasive on a flexible paper backing. They have the added convenience of a hook & loop quick change system and are pre-punched for use on hand held sanders with integral dust extraction systems. Package Included: 1X Pack of Sanding Sheet (10Pcs)