The black wooden rings are very beautiful minimalist style natural jewelry. Measures: in width 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm,1 cm. Inner diameter (where your finger goes through the ring): Available in sizes 3 through 16 in half size increments. Made to order in 2-3 days. If these sizes do not meet the measure of your finger, do not forget to state your size, please! Materials: The wooden rings are handmade from wood - black ebony wood. Surface of the Wood Ring is hand polished to make them brilliant. The wood is protected and nourished with natural polishing wax. Polishing wax contains valuable natural waxes, pure beeswax and carnauba wax. Does not contain silicone and aggressive for the environment agents. Color: black. The Wood Ring is very lightweight. It is as light as a feather, making it very comfortable to wear! The wooden ring come packaged in a gift box. This unique wooden ring is completely natural and Eco-friendly product! I have done my best to show accurate color. Please allow for slight difference due to monitor settings, and photo lighting. If you have any questions, please contact me and I will be happy to answer. : ) Thank you very much for visiting our "cool Natural Jewelry" !!! Greetings from Bulgaria !!!