The twin pack has now been discontinued and the carriages have been remodelled and released separately in the USA.This package is a pair of the new carriages and they will come boxed individually.
The details of Annie and Clarabel's lives before 1946 are murky. In 1946, they were given to Thomas when he started working his own branch line. They have had several adventures, such as losing their guardand becoming runaways.
When Thomas is away, Percy, Toby, or Duck takes his place to pull them. Emily once took them not knowing they were Thomas' coaches.