Winsor & Newton Deep Edge Artists Canvas We have tried many brands of prestretched canvas; and we have listened to customer feedback as well. One brand that keeps coming out on top is Winsor & Newton. Their prestretched canvases are made with 8oz natural cotton duck. The Deep Edge stretcher bars are 1-1/2 inch deep, and feature staple free edges- the canvas is stapled onto the back of the stretcher bars, so the edges can be painted to display finished paintings with or without framing. Each canvas is triple primed with acid free sizing and two coats of highly pigmented acrylic primer (gesso). This priming offers balanced absorbency and tooth, while preventing oil paints from sinking or soaking through. The stretcher bars themselves are kiln dried and have beveled edges. Each canvas is stretched by hand, and there is ample canvas on the back if you should decide to restretch the finished painting. Ideal for use with oil, acrylic, and alkyd paints. Perhaps best of all, we are offering these cavases in packages of six at discounted prices! Please note that the photo shows different sizes for illustrative purposes only- you are buying one box of six that contains all one size!