Made in the USA - Strong, sturdy, and reliable.Great for replacementsPopular for bar stool & chair applications7" square flat profile top & bottom platesSpring auto return to center feature brings this swivel back to it's original / front position after it is swiveled.200 degree rotation (100 degrees in either direction)43 pre-lubricated ball-bearings in a full round trackMounting holes are 0.75" long oval shaped slots & accommodate most 5.25", 5.5", & 5.75" mounting screw patterns (Mounting hardware not included)Approximately 3/4" thick** The top of the center bolt extends approximately 1/4" above the top plate (see picture) - Please ensure that your seat allows for this in the mounted positionSteel - unpainted finish