US Art Supply 16 x 20 inch Black Professional Quality Acid Free Stretched Canvas 4-Pack - 3/4 Profile 12 Ounce Primed Gesso - (1 Full Case of 4 Single Canvases) Ideal for use with all acrylics, oils and other painting media 3/4 inch Profile - Back stapled with staple free edges Triple primed with acid-free acrylic gesso Hand Stretched Over Kiln-Dried Stretcher Bars from Environmentally Managed Forests Unprimed Weight 7oz - Primed Weight 12oz