You are looking at a Total Performance/Speedway Disc Brake Kit with the instructions.  This was designed for a streeetrod with early Ford front spindles.  It includes the Polished Wilwood Calipers, pads, shims, and mounting hardware.  It also includes the painted steel Caliper mounting brackets with bolts for both sides.  This kit has never been used or mounted.

This kit is currently available from Speedway (Their part #7154070 for $329.00,  and their kit includes (2) 10" X 1/4" brake rotors).  If you need rotors they are $38.00 each from Speedway part # 715205.  I have priced this kit without rotors for $215.00.