Patent X Products nameØalloyVersiontensionPUitem No.magnetic clasp Pat. x8.0 mmsilver gold-platedpolished650 g1459390magnetic clasp Pat. x8.0 mmsilver gold-platedmatt650 g1459391magnetic clasp Pat. x10.0 mmsilver gold-platedpolished1100 g1459393magnetic clasp Pat. x10.0 mmsilver gold-platedmatt1100 g1459394