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 and acrylic, that holds the colour on the surface and prevents seepage. Daler-Rowney Artists’ Stretched Canvases are stapled on the back to give clean edges and 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 and stability. Sold in packs of 4.