Jack Richeson Best Heavy Duty Stretcher Bar, 60-Inch Made in usa, by wisconsin craftsmen, for the finest artists in america Finger jointed pine to improve strength and straightness Lengths from 8-inch to 144-inch. Because it is wood it is possible with climate change (moisture) the bar could have warped slightly. Accepts BEST Key Canvas Tightening System, ordered separately We recommend cross braces for stretcher bars over 36-inch in length