I've been framing my own artwork for years, and I have way more matboard than I'll ever be able to use. I've decided to cut some of the pieces up into ACEO-size blanks and offer them here.
This listing is for 20 pieces of matboard -- Crescent regular surface. It's acid free, extremely thick, and has a great surface for pencil, pen and ink, acrylics, or mixed media work. These blanks are all very dark blue, with a very slightly textured surface. (For comparison, the third photo shows one of these next to a black card, so you can get an idea of the color.) The backs of the blanks are white.
Crescent matboards have a quality surface paper that is highly fade and bleed resistant. The cream core is made of unprinted, reclaimed wood pulp fibers and, along with the backing paper, is buffered and acid free. Individual boards are 14-ply, .052"–.060" (1.3 to 1.5 mm) thick. The full stack of 20 pieces measures 1.125" thick!
These are cut to 2.5" x 3.5", so they're all ready for your artwork.
*** Also included, but not pictured here, are 20 polypropylene card sleeves (top loading). These sleeves measure 2-5\/8" x 3-3\/4", so they're the perfect size to protect your new artwork.