O scale is a popular model railway scale that represents a ratio of 1:48, meaning that one foot in real life equals ¼ inch on the model. This scale is commonly used for creating detailed and realistic train layouts, making it a favorite among hobbyists and collectors. Trains and accessories in O scale are larger than those in smaller scales, such as HO scale or N scale, allowing for more intricate details and features. The larger size also makes it easier to handle and operate, appealing to both beginners and experienced modelers.