Approx. 40 x 40 cm 11oz, archival quality, acid free, triple primed medium grain canvas. Made with 34 x 37mm, kiln dried stretcher frames. The high quality primer provides minimal colour shift and a good adhesion to the canvas. Suitable for all oil and acrylic paints. They are back stapled with folded, uncut corners, to create a neat finish and allow the artist to paint the sides if desired. Canvases can be if necessary, using the supplied wedges.