Walthers Cornerstone HO Scale Track Bumpers are based on end-of-track bumpers used to keep freight cars and sidings safe in your industrial areas and at stub-end stations. These easy-to build kits feature plastic parts molded in a realistic color. Simply snap the bumping post into place when complete. Use these on spurs serving Cornerstone HO Scale industrial buildings. and at train stations and in yards. These track bumpers work with most brands of HO Scale track.