uh... 5mm. or half a centimeter, .005m or about .197 inches
it is 5mm
5 mm is about 1/5". About the diameter of a pea.
As wide as 4mm on a ruler
5mm :)
well... in my ring piece there is only one ring and you can guess what thats for.....
thats what sombody named it
Its a number thats on ring to tell you what edition it is , that if theres more then that one ring but the same types
5mM
well thats your problem you bought the wrong mood ring
25mm2 = 5mm * 5mm
5mm is half a cm