JAM Paper White Window Booklet Envelopes offer a creative way to get your mail noticed

And their 8 1/2" x 8 1/2" size is perfect for party invites

and leak proof bottom

Dimensions: 24" x 17"

Designed for top-notch temperature control

JAM Paper Blank Foldover Cards, 5 x 6 5/8 (Fits A7 Envelopes), White, 50 Pack c734n_219005|en_CA JAM Paper White Window BookletGet personal with JAM Paper Blank Foldover Cards. They measure 5" x 6 5 8" (a perfect fit for A7 envelopes), and are made from sturdy 65 lb cardstock, creating a high quality look that is guaranteed to impress. These cards can be used horizontally or vertically; just choose a layout you love and customize the black space inside! From memos and invitations to thank you notes and greetings, our envelopes provide exceptional efficiency.