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, Alloys 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 hexagons.