WINSOR & NEWTON-Universal Canvas Board. This professional quality canvas is great for use with oil (including water mixable), acrylic and alkyd color. The 100% cotton canvas has a medium grain surface that is ideal for all techniques. It is double coated using acid- free sizing and highly pigmented primer. Balanced absorbency and tooth prevents sinking of oil colors and improves adhesion. It is hand-stretched on 0.59in/15mm thick kiln-dried beveled stretcher bars and includes ample extra canvas on the back for restretching if needed. This package contains two 12x16 inch canvas boards. Conforms to ASTM D4236. Imported.