A professional range of Winsor & Newton® back-stapled pre-stretched artist canvases manufactured to the highest quality standards. Heavier weight superior quality cloth features a medium grain surface. Ideal for use with oil and acrylic paints. Made of 8 ounce 100% natural cotton duck. Triple-coated with acid-free sizing and 2 coats of highly pigmented acrylic primer. Professional frame construction with kiln dried beveled stretcher bars. Stretched by hand for best tension and tailored corners. Ample canvas on the back for stretching. Individually shrink wrapped.