The listing is for one ring with Dendritic Agate stone. These Agates are colourless, white, or grey, and have a tree- or fern-like inclusions of iron or manganese, called dendrites. The ring band is 2 mm thick and is very sturdy. You can order a ring of any size. If you don't see your size in the menu (or don't know your US ring size), pick any and send me a note with the size you want. If you are not sure about your size, this might 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). Timing info Please, note that custom made items take up to 5 working days to be shipped. You will receive it gift wrapped at no additional charge.