Knuckle Ring, Armor, Shield, Wide, Long, Boho, Bohemian, Vagabond, Hippie, Goth, Minimalist, fine copper, big size
length: 53 mm = 2.086 inch
width of the lower part 9-10 mm = 0.354 - 0.393 inch
size 10 1/4 US/Canada ;
inside diameter 20 mm = 0.787 inch
Cause of length and shape it will not fall off and is comfortable even for finger size 9 (know it from experience).