In the Atom ring the smaller atom meets the larger one at a small opening. The ring can be seen here in a shiny steel and looks lovely when combined with the Atom bracelet and studs.
Diameter small 5 mm, large 7 mm. Shiny stainless steel. Nickel safe. Small in size, go for one size larger.
Note that the ring is small in size, so we recommend you to choose a larger size.