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5 Stars Brass window stay
Jeff C from PA wrote (April 22, 2013):
I installed this 10 years ago to brace the stair banister. it has worked perfectly. The knob is connect to the bottom of the railing and the bracket end is mounted to face plated where the railing passes the second floor. I cut off the brass rail so it does not stick out beyond banister and tighten knob hard.