The Rogue Remembrance band is made from titanium, and wood species of choice. This ring is inlayed with the ashes of a lost loved one in remembrance of the time shared together shared. Please personally contact me Stephen 541-414-7938 for shipping information for the ashes. Antler can also be added and would replace one of the wood inlays. The wood species in this photo is Walnut. Millimeter varies depending on size of ring. Can be made in sizes 6-15. If a bigger size is needed pleas email me. All sales final.