PCD310 Popular 100-200-300-400-500M OEM Portable Cable Reel/Winding Drum/Roll/Tray for Armored Tactical Cable ***Heavy duty collector ring - A robust collector ring assures maximum conductivity current flow. ***Long life drive spring - Declutching arbor virtually eliminates possibility of spring damage due to reverse winding. Only the highest quality spring steel is used and conditioned to insure there are no imperfections offering maximum service life. ***Quality finish and corrosion resistant - Individually powder coated components offer the maximum protection from premature corrosion.