Daler-Rowney Artists' Stretched Canvases are made to the highest specifications. They are made with a superior-quality heavyweight (350gsm), acid-free, 100% cotton, medium grain canvas and professional stretcher bars in heavy wood for improved strength and optimal stability. 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 through to the back. Daler-Rowney Artists' Stretched Canvases are stapled on the back to give clean edges and come complete with wooden wedges to adjust tension in the traditional manner and they are individually wrapped to protect the surface. Size 40x40cm.