TOOLS | Explosion Proof, Dust Ignition Proof; One Hub; for Use With Threaded Metal Conduit; for Use in Wet Locations | Explosion Proof, Dust Ignition Proof; Two Hub, One Plug; for Use With Threaded Metal Conduit; for Use in Wet Locations | High-Pitched Continuous Beeping Sound | Knurled Jaws for Sure Wrapping and Looping | Push Button to Easily Open and Close | Ratcheting Mechanism