Manual slack adjuster for heavy-duty trucks and trailers Applied for BPW in Europe 6 holes, 10 teeth, 14mm bushing dia. 1)Manual slack adjuster for heavy-duty trucks and trailers2) Applied for BPW in Europe3) 6 holes, 10 teeth, 14mm bushing dia. 4) Color: zinc plated, black, blue, etc.with TUV: TS16949 certificated