The Northwest Outdoormen is made out of beautiful Redwood Burl, Turquoise and Raw Gold nugget inlay out of gold from the streams and river of the Oregon Cascades. Also featuring a titanium band for strength and durability. All the elements come from the Pacific Northwest giving this stunning ring it's name. Millimeter varies depending on size of ring. Can be made in sizes 8-15 If a bigger or smaller size is needed please email me or contact me (Stephen) @ 541-414-7938 All sales final.