This is a necklace made of 3 stainless steel washers which fit perfectly inside each other. The largest measures 32mm, the middle one measures 25mm and the smallest measures 19mm. Each one can be stamped with one name or date.
Although they aren't pictured, these are also available as a stack of 2 (19mm and 25mm) and as a stack of 4, with a 38mm disc added to the outside.
Stainless steel is a great choice for jewellery as it is hypoallergenic, does not rust or tarnish and is very durable so you can treasure your necklace for a lifetime!