10 of 20x24 white Pre-cut Acid-free BLACKCORE mat for 16x20 + back
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<b>[Product Information]</b><br>
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<li>10 of 20x24 white Pre-cut Acid-free BLACKCORE mat for 16x20 + back</li>
<li>This item comes with 10 single mats and 10 backing</li>
<li>The opening size is 15.5"x19.5" for 16x20 print + backing board</li>
<li>The mats are beveled cut with black core and 4-ply thick (about 1.4 mm or 1/16 inch).</li>
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