50 X C5 White Self Seal Security Envelopes (Size: 229X164Mm) | Fully Opaque, Sel
Size Plain - C5 (229x164mm). There are a wide variety of sizes and quantities to choose from. The sizes available are:C4 (324x229mm),C5 (229x164mm),DL (110x220 mm), &C6 (114x162mm). Just close the flap and press shut!