Museum Series Gessobord is a trusted professional quality prepared wood panel for artists. The superior quality acrylic gesso ground does not dull colors and the wonderful lightly sanded surface provides exceptional brush control with both oils and acrylics. Made with 1/8" hardboard and Archiva-Seal technology, the surface is acid-free, non-yellowing and archival. The cradled frames are made with premium grade 13-ply birch plywood for maximum stability and a clean, finished look. Made in the USA.