This Walthers Cornerstone HO Scale Single-Track Railroad Bridge Concrete Pier kit is perfect for use with Cornerstone single-track bridges and is part of the Cornerstone HO Scale Engineered Bridge System. This kit can be built with or without a cutwater and molded cut lines allow you to customize the height to fit your bridge height. The kit includes parts for two single-track concrete bridge piers and comes molded in a concrete base color.