This stacking ring is a simple but yet beautiful jewel for your inner minimalist. It is a gentle and delicate piece, which you may wear alone or stacked. It is a great every-day jewel which will perfectly suit any occasion and any outfit. The ring is made of sterling silver. It is 1 mm thick. You see the ring of the 5.5 size in the pictures. You may order the ring of any size. If you are not sure about the size, this will be helpful: findmyringsize.com/ If you want to buy the ring as a gift and you don't know the precise size, you may also choose a standard size: Small (UK- M, USA - 6) Medium (UK - P, USA - 7,5) Large (UK - S, USA - 9). This is a custom made item, so it will take up to 5 working days to ship it. You will receive it gift wrapped for no additional charge.