Heavy duty 300 lb office chair tilt mechanism replacement, tilt control mechanism with 6" x 10.5" mounting holes.

STANDARD SIZE - Replacement office chair tilt mechanism with 10.2 long x 6 wide screw holes for most office chairs. Maximum mounting hole length is 10.4, minimum length is 9.7. HEAVY DUTY 300LB - Replacement office chair swivel tilt control seat mechanism rated up to 300LBs. TILT CONTROL - Push lever to lock tilt, pull to unlock. FUNCTION - Single lever for gas cylinder height activation, accepts standard taper gas spring 28mm ID cylinders. EASY TO USE - Turn the steering wheel to tighten or loosen (adjust) the back tilt tension.