1″ overall. Set includes two MagNuts (left and right) each with 0.5″ diameter split ring. 0.25″ x 0.25″ rare earth Neodymium Iron Boron magnetic cylinder insert, which has a pull force of 6.5lb(s). Manufacturer’s Warning: Caution: Do not wear with pacemaker. Clam packed.
Weight:0.04lbsCountry of Origin:USA