This is the magnet fishing line which pulled a hand grenade out of water near Wigston this week.
As reported, the bomb squad was called in after two men found the unexploded device.
Magnetic fishing is a relatively new hobby along the lines of treasure hunting. The aim is to retrieve metal objects lost in water.
The magnets are strong enough to pull out waste metal, which also gives the pursuit an environmental aspect, and can drag up bicycles and other heavy items.
The magnets are fixed to the end of a strong rope used to pull objects to shore.
That was the case when two men found a hand grenade in a Wigston river this week.
The bomb squad subsequently exploded the device after it was discovered by Lee Eastwood and his friend Russ Green.
Lee told Leicestershire Live yesterday how they often go down to the spot to do some magnet fishing and have pulled “out all sorts” of metal objects over the years .
“Russ threw the rope in with the magnet, pulled it out, and there was a grenade on the end of it,” he said.
“I was talking to a guy riding past about his bike when Russ pulled it out, needless to say this guy rode off pretty fast.
“I thought it was a lighter at first”, the 33-year-old added.