Masterpiece Artist Canvas 45003 3D PRO 2-1/2" Deep, 8" x 8", Cotton 10.5oz - 3X - Monterey Most Popular Medium weight 100% cotton, 7 oz raw weight, 10.5 oz finished weight. Medium, uniform texture. Sized and double primed with archival quality acrylic gesso. Canvas Depth: 2-1/2", Canvas relief: 1/2" (Space between canvas and Bar). Solid Pine or Fir Stretcher Bars from the sustainable forests of the Pacific Northwest. No finger joints are allowed, which tend to fail under pressure and over time. Fixed Corner Frame. Not keyable or expandable.. No Brace Required for this size. Stretched using our MuseumWrap method yielding a balanced tension across the surface of the canvas, and a drum-tight stretch that is up to 50% tighter than other methods. Folded corners mean a canvas that is uncut and perfectly intact, allowing the canvas to be removed from the frame and re-stretched. Stretched using our MuseumWrap method yielding a balanced tension across the surface of the canvas, and a drum-tight stretch that is up to 50% tighter than other methods. Folded corners mean a canvas that is uncut and perfectly intact, allowing the canvas to be removed from the frame and re-stretched.