Tim Holtz® Alcohol Ink Hard-Core Art Panel is a versatile substrate for fine art and mixed media techniques using Tim Holtz® Alcohol Inks, Pearls, Mixatives, and Blending Solution. Hard-Core Art Panels are double-sided vinyl with an Engineered-Wood-Rigid-Core MDF board offering an ideal surface that remains rigid and flat. Vinyl is mounted with a pH non-yellowing permanent adhesive which creates a ready to use bright white, lightly textured surface. Available in 3-pack of 4 x 4, 3-pack of 5 x 7, assorted square pack (one each of 8 x 8, 6 x 6, and 4 x 4), and assorted rectangle pack (one each of 8 x 10, 5 x 7, and 4 x 6).