General InformationBrand3M?Core TypePlasticCountry Of OriginUnited StatesSold AsRollCalifornia ResidentsDimensions and SpecificationsBacking Thickness (Imperial)5 milCore Size (Imperial)3 inCore Size (Metric)76.2 mmMicron Grade30 ??mOverall Length (Imperial)450 ftOverall Length (Metric)137.25 mOverall Width (Imperial)1 inOverall Width (Metric)25.4 mmGritNon PertinentVolume712.8 cubic inch11680.7 cm3Weight2.26 lb1.02 kgOther DetailsRoll WindASOProduct CategoryCoated AbrasivesMaterial and CompositionAbrasive MaterialAluminum OxideBacking MaterialPolyester FilmProduct FormRollGradeNon Pertinent