8mm wide with rounded edges.
Between drilling, checking equipment, climbing ladders, and hitting the gym, a firefighter knows how to use their hands. These are meant for wearing in duty. A safe alternative to metal rings, this silicone ring will not only be more comfortable and functional for the job, but will show the dedication and respect for those who have risked and given their lives before them. Along with the tungsten counterpart you are set for every other occasion that comes up.
If you are not sure about your ring size, then you can check at this site (http://findmyringsize.com/).