K70 opaque safe envelopes with outside size 160 x 245 mm +35 mm.
B5 opaque safe envelopes with outside size 200 x 260 mm +35 mm.
B4 opaque safe envelopes with outside size 275 x 375 mm +35 mm.
C3 opaque safe envelopes with outside size 335 x 475 mm +35 mm.
