This box canvascould be the perfect base for your artwork this heavyweight canvas weighs in at 400 gsm which is ideal for use with oil and acrylic paints the canvas is back stapled to a sturdy wooden frame that comes complete with corner wedges for additional supportthe canvas is acid free and has a medium grain which makes it suitable for displaying your pieces large or small due to the shape of the box canvas the sides are wide enough to paint the edgessize 305 x 305 cm 12 x 12 inche