I have these to fit vintage envelopes in between. I am buying/selling a mail story and sometimes the cover (envelope) is bent or dented. I steam the lid and put it between 2 such sheets and clamp it between the boards for 12 hours. It does an excellent job of smoothing and drying the cover.
Epson Premium Matte Presentation Paper - 100 Sheets (8.5X11 Inches) For Professional Quality Results
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2 Pack Hardcover Notebook - JoyNote A5 College Ruled Writing Journal With Pen Loop, 96 Sheets/192 Pages & 2 Plan Stickers Gifts | 5.75 X 8.25 Inches (Black Pink)
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