Daler-Rowney Artists’ Stretched Canvases are made to the highest specifications. The Artists’ canvases have been given three coats of acrylic primer; triple-priming creates a perfect ready-to-use painting surface, for both oil & acrylic, that holds the colour on the surface & prevents seepage. Daler-Rowney Artists’ Stretched Canvases are stapled on the back to give clean edges & come complete with wooden wedges to adjust tension. 100% cotton. 350gsm heavyweight canvas. Stapled at the back. Medium grain. Triple primed. Heavy wooden bars for strength & stability. Sold in packs of 4 or 6.