Stacking holder for FST24S fiber splice tray with built in fiber spooling. Holds and secures 1-4 splice trays (FST24S) with Panduit Tak-Ty cable ties. Mounting hardware included. For use with FMT1, FMT2, FMD1, or FMD2 rack mount trays and drawers. Dimensions: 1.75H x 13W x 7D (44mm x 178mm x 330mm)"