Experts and internationally renowned artists alike appreciate the qualities of a Claessens Belgian linen - an archival support of exceptional quality. Claessens linen canvas is made from natural materials. - Claessens Linen Canvas Roll - 82" x 5-1/2 yds, Oil Primed, No. 9, Fine Smooth TextureClaessens Artists Linen, 5.5YDX82 9 OP - Medium threads and medium weight, but finished with a very smooth surface. Although the weave and weight is similar to Styles 15 and 20, the finish is much smoother, ideal for painting detailed works in larger formats than would be suitable for a portrait grade linen.