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These are OO / HO Scale lamps for use on engines of the same scale. These were made to be replicas of those seen on the Thomas & Friends television show. These lamps will need to be painted and if you like, a blob of hot glue on the front where the bulb goes gives the lamps a very nice look. The front lamp has a hole cut into the bottom so that it can fit over lampirons on models, such as those seen on the Bachmann Thomas models.
These lamps come on a sprue which will need to be removed in order to use them, Simple cut of pull off the sprue to remove it.