... puzzles, writing boards, calendar, notepads, photo frame, and memo magnets.4) Safe for Children (SGS testing report for ... Cu-Ni, Zn, white-blue Zn, Epoxy, Gold, and etc.High Magnetic PerformanceHigh magnetic performanceApplication Sensors, motors, rotors ... speakers,loudspeakers, magnetic hooks, magnetic holder, filters automobiles and so on.CertificateISO9001: 2008 , SGS RoHS standards, TS16949Our ...