These economically friendly, super value packs of canvas are great for lighter paint applications, quick studies, practice and classroom or high volume use. The unbleached 3.5 oz. cotton is primed with acid-free acrylic titanium gesso to a finished weight of 7 oz. and stretched around and back-stapled to 5/8" deep, kiln-dried fir stretcher bars. Suitable for use with all acrylic paints, oil paints and other wet or dry media. The number of canvases per pack varies by size.