HEFTMAN Artist Blank Canvas Frame: These artist blank canvas frames are the perfect way to express your creativity. Made with 100% medium grade cotton to ensure a high-quality and long-lasting product. Each art canvas is complete with a high-quality pine wood frame and stapled at the back so it can be displayed anywhere. The canvas is triple primed with acrylic titanium gesso giving it high tension to ensure it is strong. It is suitable for use with oil and acrylic paints to make the image in your mind a reality on canvas. This set of 4 contains 2 x 20 x 30cm canvases and 2 x 30 x 40cm canvases for you to choose from. Includes:2x Canvas Board 20x30 cm2x Large Canvas 30x40 cm