High Quality Italian made shear bolt protected driveline, fits 5 & 6'cut mowers both 40hp and 60hp that are shear bolt protected.Can also be used on 4' mower by cutting down to length. This is a new driveline complete with 1-3/8" Z-6 Spline tractor side with quick disconnect yoke and 1-3/8" smooth bore with 1/2" shear bolt hole implement end, series 4 spec PTO, complete with safety shields. This PTO measurers 42.5" closed length and 55.5" maximum extended length. This is a much higher quality PTO than most China made PTO shafts and should provide many years of trouble free use. NOTE: The quick disconnect feature on the tractor side yoke may vary, the unit you receive may have a push button, twist collar or slide collar locking mechanism, all of which are tool free quick disconnect .