These canvas boards from Winsor And Newton are constructed from medium grain cotton canvas that is then secured to a high quality board. These boards are coated with highly pigmented acrylic primer specially formulated by Winsor And Newton.Details:WhiteAvailable in multiple sizesConstructed from medium grain cotton canvasBoards are coated with highly pigmented acrylic primerTriple-coated with acid-free sizingIdeal for use with oil, acrylic and alkyd paintCanvas is stretched by hand for correct tension and featuring tailored corners