Complete kit with all rollers, roller retainers, bearing spacer, washers, seals and covers for the Star Hub type interchangeable wheels. Fits 61", 74" and 80" 1936-1957 Big Twin front and rear, 1937-1952 45" W-models rear and 1941-1957 45" Servi-Cars front. Outer cover has a black parkerized finish as it was standard for these years.