Postalytics offers the following sizes and formats:
- 4×6 Color Postcard
- 6×9 Color Postcard
- 6×11 Color Postcard
- 8.5×11 Color Letter
- 8.5×11 Color Extra Pages, up to 6 pages, can be 2 sided for up to 12 pages total
- #10 Plain Double Window Envelope – included with all 8.5×11 letters
- #10 Custom Single Window Envelope – pre-ordered at an additional cost and used instead