X-Bracing for fabricating steel girders. Sixteen strips each measuring four inches long by just over 1/8" wide (24 scale inches) for a total of 853 scale linear feet (64 actual linear inches.) To be assembled by modeler to thin plastic or brass strips to build up hollow box-girders for use with bridges, construction projects, flatcar loads, etc. Relief-etched in .013" brass for extra detail.