One piece crank bottom bracket. Threaded 28 threads per inch (28T) Finish: CHROME (actual chrome plating - not just zinc like many others sell) Included are: * 2 cups * 2 bearing retainers * 2 lock cones * 1 lock washer * 1 lock nut * 1 chain ring spacer PLEASE NOTE: Most one piece cranks made in the last 40 years are 24 threads per inch - NOT 28 threads per inch. Schwinn/Ashtabula cranks, Mongoose stamped early 80's and some Sugino cranks are some (rare) examples of one piece cranks that MAY be 28 threads per inch.