Gallery-stretched and hand-splined. 100% cotton duck archival quality. Professional frame construction with kiln-dried, bevel stretch bars that are .75″ thick. Canvas is removable for restretching and is finished with acid-free titanium acrylic gesso. Intended for use with acrylic and oil paints. Comes in a variety of sizes ranging from 4″x4″ to 40″x60″.