Review on Diameter Synthetic Grommets Protection Double Sided by Brent Porter

I used this grommet as a barrier on my JOBOX to run an extension cord through to safely charge the JOBOX batteries under lock and key. I sawed a 2" hole to spec then installed the grommet and then made notches in the rubber membrane and threaded the extension through, the whole installation went smoothly. I can now charge power tool batteries while imprisoned. .