Lawyers are seeking a class action lawsuit against Royals Hall of Famer George Brett who endorses Ionic Necklaces, which claims to relieve pain in the neck, shoulders, and upper back.

A lawsuit filed in Des Moines, IA claims that Brett Bros. Sports International Inc. falsely claimed that bracelets, which have two roller magnets, would also relieve wrist and hand pain.

Seth Thompson of Iowa bought one of the necklaces for $30 at the College World Series after reading the endorsement from Brett and the lawsuit says the product was “useless to him,” after he hoped it would reduce stress and boost energy.