Maruai Ribbed Envelope Nagagata 4 (Long Size 4) 90 x 285mm 100 sheets Fits B5 size folded in four No printed postal code frame Center seam on the back *This envelope is not suitable for mailing due to the use of thin paper. Although unopened, there may be package creasing, minor dirt on the tape, and slight wrinkles. Please refrain from purchasing if you are looking for a perfect item. Envelopes, letters, shipping materials, business, payments, brown envelopes