Largest Large Letter Size Hard Board Back Envelopes A4+ C4+ 352mm x 249mm Cheap
SIZE OPTIONS : A4 Board Backed Envelopes Are Available in various sizes, you can choose the perfect fit for your specific needs. 324 x 229 mm - ( C4 / A4 Size - 125 Envelopes / Box ). 352 x 249 mm - ( C4+ / A4+ Size 125 Envelopes / Box ).