The bo bo class 67 cairn gorm 67004 caledonian sleeper with tts sound locomotive r3388tts is an outstanding model train that39s the perfect fit for your 00 gauge hornby layout it features a huge amount of detail on all sides and boasts accurate rail livery that adds a real air of authenticity to your set connect it up to your wagons and watch your assembled train roll around the track on a mission to deliver passengers goods and anything else it can tow