Straight Braces: "Fits 36" Canvas"
These braces are specifically constructed to work with the B-2 Heavy-Duty Pro Stretcher Bars (MA41...). Masterpiece canvas stretcher bars have a patented groove system running the inside length of the bar that allows artists to brace their canvas easily. The straight braces slide into the groove and are offset from the stretcher bar forming a slot. There is a long slender key that works in this slot making the brace keyable. This allows for micro adjustment of the braces and allows for assembly without any woodworking; a rubber mallet is all that's needed.