MULTI-USE: Heavy-Weight 12-Ounce Primed Surface accomodates all types of media types - Acrylic, Oil, Watercolor, Tempera, Gouache, Pouring, Airbrushing & More. DURABLE CONTRUCTION: 100% Cotton Canvas - Hand Stretched & Back Stapled Over 3/4" Kiln-Dried Stretcher Bars from Environmentally Managed Forests PROFESSIONAL ARTIST QUALITY: 3/4" Thickness Profile & 12-Ounce Triple Primed with Acid-Free White Gesso