Includes spacers, bolts, nuts, O-rings, pin and spring kit.
There are two versions of the large calipers used on the 60s and 70s BMWs.  Please see attached graphic to determine which ones you have. 
Our spacer kit will fit both the early and late.  Because the pad opening is narrower on the early calipers, you might need to bend the pad retainer spring wings to fit into that opening.