S - 17mm inner diameter
M - 18mm inner diameter
Thickness of the ring is 6mm.
The ring comes packaged with care in a bubble-wrapped envelope and is shipped using regular Australia Post.
Care instructions - Please keep the ring away from water and sharp objects. Wear it with love and have fun!
Check out the rest of my wooden rings range as pictured in the last image.
More rings here - https://www.etsy.com/shop/whimsymilieu?section_id=11058465