I used to buy many Itoya art profiles ranging in size from 8" x 10" to 13" x 19". So far they have all held up despite being packed with artwork and I can flip through them very easily with no issues. However, I store Profilio lying down rather than upright as some might like, so I'm not sure how this affects longevity. All portrait and landscape sizes I've purchased so far have protective sleeves that open at the top and the sizes are only slightly wider/longer than advertised so your work will fit comfortably if they're exactly the same. than listed sizes. The black leaves are included in each protective case. Frame your work or photos beautifully. The silver spine in the photos is actually a piece of paper that you can take out and turn over to mark the title, dates, etc. that appear on the spine. I use these art profiles primarily for illustration purposes only. For sketches and drawings on normal cellulose paper (i.e. wood paper) I usually glue it to black surfaces with acid-free glue (you can also use acid-free tape). I also like to remove the backing to store cotton paper paintings. So far I haven't had any issues with the placement of illustrations created on different weights of paper. It even takes 140 pounds of paper even if you put two in each sleeve;
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