Hoffman QTP24INST Poly insert 24" wide (10 ft), 24.00x120.00, PlasticPolymer inserts provide continuous support for the cables when used as a tray liner. This flame retardant polymer material is prescored at the factory to fit in all standard width QUICK TRAY PRO cable trays. Product Specifications BRANDHoffman® MANUFACTURERS PART NUMBERQTP24INST CONSTRUCTIONPlastic DESCRIPTION24 X 120-In. Polymer Insert COLOR-- A X B X C MM-- A X B X C INCHES--