1 x O9 / 7mm / 1:43 RHDR No.4 "The Bug" Locomotive body. 1 x O9 / 7mm / 1:43 RHDR No.4 "The Bug" Locomotive tender. 2 x O9 / 7mm / 1:43 RHDR No.4 "The Bug" Locomotive tender wheels and axles. To complete you will require a Fleischmann 7000 or Ibertren Cuckoo Donor chassis.