At first thought the round thing looks like a handle to hook electric fence, where you would hook and unhook at a gate. But if it's solid and not insulated, Gib is probably right! Sorry Gib, I'm not sure your on with the Lowes apron though, something just doesn't look right!
Garrett AT Pro, Garrett ACE 350, and Bounty Hunter Pioneer 505. In the past: Home made detector (circa 1969), World War II mine detector, Fisher M70 M-Scope (1971), Bounty Hunter TR 550, Bounty Hunt