General InformationBrand3M?Core TypePlasticCountry Of OriginUnited StatesSold AsRollCalifornia ResidentsDimensions and SpecificationsBacking Thickness (Imperial)5 milCore Size (Imperial)3 inCore Size (Metric)76.2 mmMicron Grade40 ??mOverall Length (Imperial)450 ftOverall Length (Metric)137.25 mOverall Width (Imperial)0.75 inOverall Width (Metric)19.05 mmGritNon PertinentVolume46.15 cubic inch756.29 cm3Weight1.76 lb0.8 kgOther DetailsRoll WindASOProduct CategoryCoated AbrasivesMaterial and CompositionAbrasive MaterialAluminum OxideBacking MaterialPolyester FilmProduct FormRollGradeNon Pertinent