Trim Coil 24inx50ft Wht/Blk Al Used as a moisture barrier. Trim coil is used to create decorative trim accents. With Trim Coil you can create a maintenance free exterior. Cover rake boards, trim around windows and corner boards. Using Trim Coil means no more painting. TRIM COIL Black/White Nom Thick=.018 Wdth In x Lgth Ft=24 x 50