C6 C5 C4 C3 DL Sizes for A4 A5 A6 Hard Board backed Envelopes

229 x 162 mm - ( C5 / A5 Size - 125 Envelopes / Box ). 324 x 229 mm - ( C4 / A4 Size - 125 Envelopes / Box ). 238 x 163 mm - ( C5+ / A5+ B5 Size 125 Envelopes / Box ). 352 x 249 mm - ( C4+ / A4+ B4 Size 125 Envelopes / Box ).

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