Have you ever wondered what those little pieces of wood are for, or plastic in the case of some cheaper canvases, which come with a stretched canvas? Sometimes the canvas keys are stapled on the back in a small bag, sometimes they are already glued to the mitered corners of the stretcher bars (the wooden frame that the canvas is attached to). These pieces of wood are wrenches or canvas clamps, which are used if the canvas starts to sag a little on the stretcher. This can happen over...
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Pintando "Paint Your World" Painting, Drawing, Art & more...