14 LINE BACK PLATE (1/4″ TUBE WITH 9/32″ MOUNTING HOLE) STRAP (FITS BOTH) 7 BACK PLATE (1/2″ TUBE WITH 9/32″ MOUNTING HOLE)

6 LINE BACK PLATE (1/4″ TUBE WITH 9/32″ MOUNTING HOLE) STRAP (FITS) 4 LINE BACK STRAP (3/8″ TUBE WITH 9/32″ MOUNTING HOLE) (FITS) 3 BACK PLATE (1/2″ TUBE WITH 9/32″ MOUNTING HOLE)