Add realism to your HO railroad′s bridges with Bridge Shoes and Adapters Assortment. This set of shoes, shims and pedestals works on Cornerstone Engineered Bridge System bridges allowing you to add the bridges to abutments and piers. The kit allows fine tuning and alignment for more reliable bridge installation. Cornerstone HO Scale Engineered Bridge System. Multiple styles of bridge shoes, pedestals and shims Simplifies aligning and combining Cornerstone bridge kits for longer spans Detailed plastic parts molded in dark gray Includes four sprues of parts shown Visit the Cornerstone HO Scale Engineered Bridge System overview page for more information.