The Spinner Cycle Tread Ring, this ring is made from Titanium and is 8mm wide. The tread spins around the band of the ring, and it has a dome profile and is engraved with cycle tread pattern with a silver tread color to the lines. It comes in sizes 4 through 13.5, and if you need a custom size it is a $35.00 custom charge. It is a polished finish and is able to be engraved up to 25 characters. If you have a love for the cycle life, this is the ring for you!