Mum Disc Necklace & Heart Symbol - This necklace is engraved with work 'Mum' and a small heart symbol on a high polished stainless steel disc and comes on a fine sterling silver chain making this a great gift for her whether it's for mothers day, her birthday, a little thank you or a Christmas gift. Chain: Sterling silver Chain Length: 16 inches with 2 inch extender (40.5cm) or 18 inches with 2 inch extender (46cm).