Classification

Regular size

Custom size

S1

A4 SEF, B4 SEF, A5 LEF, B5 LEF,LT SEF

Width: 210 mm or more

S2

A5 SEF, B5 SEF, A6 LEF, B6 LEF

Width: 148 mm – 210 mm

S3

A6 SEF, B6 SEF, Letter

Width: Less than 148 mm