These canvases from Bob Ross feature a medium smooth surface perfect for painting on. Each canvas has been double-primed with a grey primer, allowing the painter to see if the liquid white is properly applied. The canvases come pre-stretched much tighter than other brands, giving you more durability especially when tapping and painting the surface with large brushes or painting knives. These canvases measure 40cm by 50cm. - Brand: Bob Ross - Size: 40cm x 50cm - Single Canvas - Medium smooth surface - Pre-stretched extra tight - Double primed