OLFLEX® TRAY II Industrial grade tray cable with finely stranded bare copper conductor, specially formulated PVC/nylon insulation and specially formulated thermoplastic polymer jacket. Black numbered conductors for easy identification. Improved shielding effectiveness. Oil-resistant pressure-extruded jacket for improved flexibility. Easier to pull than standard tray cables, minimizing labour costs. Superior oil performance for long cable life. It has a pressure-extruded jacket and fine copper stranding for excellent flexibility, making it much easier to pull through tray.