Forty five is what this ring is all about. That is a forty five degree angle of amazing carbon fibers that make up this ring. The ring fetures a width of 9mm carbon fiber weave with our high polished finish. This ring is a new release here and is available in standard ring sizes as well. If you need a 1/4 size we will adjust the price to reflect a custom charge of $30. Please just add that in the "comments" section of your order.