O scale model train sets have been a constant in the model train industry for over 100 years. At eHobbies, we have the best in O train sets from many different manufacturers such as Bachmann, MTH, and Lionel, Norscot/ CAT. Twice the size of HO trains, the advantages of the O trains are their size, durability, quality, and great amount of detail. In addition, these models are easily constructed which make these train sets great gifts for beginners or experts. We have all types of O sets: passenger sets, Christmas sets, steam locomotive train sets, Thomas and Friends, as well as the Polar Express train set from the popular movie “Polar Express”. Hear the realistic sounds and noises of the many different types of trains. With our wide variety of O scale model parts and accessories, the possibilities are endless for your O set.