This 40cm x 40cm deep edge version of the Winsor and Newton Professional canvas is the ideal oil and acrylic painting surface for fine art professionals. Designed to meet and exceed the needs of even those with the highest standards for canvas, this range, with a depth of 1.65 inches, is available in 6 different sizes from 20 x 20cm to 100 x 100cm. The Professional range canvases are made from 480gsm high-quality, archival and acid-free cotton cloth, which is fixed on kiln-dried solid pine stretcher bars. The kiln drying helps protect the bars and the canvas from moisture and warping. The canvas is primed with richly pigmented gesso, ensuring the ideal balance of absorbency and tooth over the material, before being expertly stretched by hand, making them ready to use right away. Additionally, should you wish for more control over the canvas tension, the inclusion of extra, folded cloth (back-stapled in the corners on the back of the canvas) and four Pro Stretcher Devices™ per canvas (except in the smallest sizes) you will be able to adjust the canvas tension more easily than ever before. The Pro Stretcher Device™ (see product images), with its innovative patent-pending technology, enables you to easily, neatly and precisely adjust the canvas tightness to make it exactly to your liking. - Size: 40cm x 40cm - Material: Cotton - Fabric weight: 480gsm - Depth: 1.65 inches - Quantity: 3 canvases per pack - Backing material: Heavy-duty solid pine - Stretched: Yes, by hand - Primed: Yes, with highly pigmented Gesso - Texture: Medium - For use with: Oil and acrylic paint - Additional features: Includes Pro Stretcher Device™ (except smallest sizes) and archival name label