160lb dumbbell

The  is a junk item in Fallout 4.

Characteristics
As the name suggests, this dumbbell weighs 160 pounds, enough to put a dent in anybody's carry weight; however, it provides 40 lead, significantly more than any other source.

Locations

 * Two are hanging on the wall of Madden's Boxing Gym in the General Atomics Galleria.
 * One can be found in the boxing gym behind the Old North Church. A toy alien is lifting it in the northern corner.