HO  Scale Products
HO products are made in a 1:87 scale. The term HO was derived from "Half O" as the scale is about one half of the O scale size.
Small Scale:  HO -- N -- Z
N  Scale Products
N scale products are made in 1:160 scale.
Z  Scale Products
Z scale products are made in 1:220 scale.
Model Train Classics, LLC
306 S. Barstow St.    Eau Claire, WI 54701
715-838-8858 
TrainClassicsLLC@aol.com