1.mainly for hand use 2.115mmx10m or 115mmx5m 3.mainly for leather, paint, wood and plastic D-wt paper Aluminum Oxide Abrasive Paper RollMaterial Grain:Aluminum OxideBase: D-wt paperBond: Phenolic ResinApplication: Mainly for leather, paint and plasticHow to use?It is mainly for hand use and it is for wood polishing.As the base is D-wt paper,so it is long lasting and the user will not feel hot ...