BAZIC No.6-3/4 Peel and Seal Security Envelope, White, 80 Per Pack (573-24P) Go to amazon.com Related posts Top 11 recommendation security envelopes for 2022 FeatureNo 6 3/480 envelopes3 5/8" x 6 1/2" DescriptionBAZIC No.6-3/4 Peel and Seal Security Envelope, White, 80 Per Pack (573-24P)