This is a 9 ounce left handed boxing glove signed by Jazzy Jeff Mayweather. Mayweather competed from 1988 to 1997 and held the IBO super featherweight title from 1994 to 1995.
He has since worked as a boxing and MMA trainer. He is the brother of Floyd Mayweather, Sr. And uncle of former undefeated boxing champion, Floyd Mayweather, Jr.