The Winsor & Newton Classic canvas (30cm x 30cm) is made of cotton and is used for oil, alkyd and acrylic paint. Thanks to the excellent pre-treatment of the canvas, the paint adheres very well. These cloths are acid-free and can be archived. The wooden stretcher bars are produced according to high environmental standards and have a thickness of 2cm. The canvas is stapled at the back, so that the sides can also be painted.