North Shore’s stretched canvas is made with 100% acid free cotton and can be used with a wide variety of artist media. Oil paints and watercolor, to acrylic and gouache this canvas is ready to use. Each canvas is triple primed and ready for painting and creating as soon as you remove the wrapper. These blank canvas are carefully stretched with just the right tension and back-stapled onto smooth wood that create a firm framed rectangle firm two pack. Featuring 9 different sizes of North Shore’s canvas, this is great for school or home projects and is perfect for professionals & beginners