FASTENERS & TOOLS | Explosion Proof, Dust Ignition Proof; Two Hub, One Plug; for Use With Threaded Metal Conduit; for Use in Wet Locations | Plastic Safe | Reduce Time on Projects With Large Quantities of Conduit Runs | Rotating Cap for Optimum and Precise Control | Use Polypropylene Line With Manual or Power Fishing Systems for Light Duty Cable or Rope Pulling Applications