The heaviest weight of the promotional canvas available in the U.S. today. Triple primed with acid free acrylic primer. 100-percent natural cotton canvas pre-stretched over 3/4" x 1-1/2" paulownia stretcher bars. Individual canvas are stapled on the back so that the artist can include the canvas sides in the artwork, thus alleviating the need for an expensive frame. Medium texture and uniform weave readily accepts oils, acrylics and alkyds.