The Simply 3D Stretched Canvas is an optimal palette to create your next work of art. It is made with acid-free cotton for a durable and long-lasting look. This triple-primed canvas is ready to use, so you can start your work right away. It's ideal for oil and acrylic painting, as well as mixed media collage. The Simply canvas four pack offers clean edges for painting on the sides. With a medium-grain texture, you can make all kinds of unique designs.