Masterpiece Elite Canvas 14-Inch by 18-Inch, Portrait Smooth Acrylic Primed Belgian Linen is one of the strongest, highest quality, professional grade pre-stretched canvases available. When stretched, the Elite bar measures 1-1/2-inches deep and is a full 2-1/4-inches wide for maximum strength of spans up to 144-inch. Equipped with a unique patented groove on the inner perimeter, the bar fits the tongue and groove braces, making them keyable, just like the corners. Exceptional Belgian linen canvas is 6X primed with 4 coats of acrylic primer and 2 coats of sizing. This beautiful linen yields a very smooth surface for fine detail work such as portraiture. Museum quality. For oil and acrylics.