CLICK ON PICTURE TO SEE COMPLETE ITEM The KNEE BAR CYLINDER/CAM SINGER 15 CLASS 66 99 128 127 201 BENTWOOD CASE REPRODUCT is a durable metal knee bar designed to provide smooth and precise control of the sewing machine. KNEE BAR REPRODUCTION SINGER BENTWOOD CASE FIT CYLINDER/CAM STYLE GOES IN HOLE WITH BAR INSIDE HOLE TO CONTROLLER MAKE SURE TO LOOK AT THE PICTURES THIS WILL NOT WORK FOR CASES NEEDING THE FLAT END STYLE KNEE BAR FITS 66, 99, 15 CLASS, 101, 201K, 28 128 27 127 AND A FEW OTHER SINGER CASES THIS IS THE KNEE BAR NEEDED TO MAKE THE CONTROLLER WORK UNDER THE BLACK LID. MAKE SURE THIS IS THE ONE YOU NEED IF YOU HAVE ANY QUESTONS PLEASE ASK CYLINDER & CAM STLE KNEE BAR REPRODUCTION NEW KNEE BAR