For 2 mm diam. engine- and marine prop shafts. The coupling has telescopic connection. Bridges from 59 mm (min.) up to 77 mm (max.). For shorter connections a forked coupling is added. In case of major vertical deviations in line-up or of an engine installed at an angle to the drive train a telescoping shaft ought to be used. Max. offset per joint 20°. Plastic. Motor shaft Ø 4 mm.