It depends on what the rings are made of. Steel would be more useful than polystyrene, for instance, and could be used in a game of garden quoits.
i dont know exactly but it could be used in rings and stuff
it has rings made out of rock and ice and it uses the rings to protect it self
They are height, width, length, distance, perimeter, circumference, diameter ... etc
Dwarves
it uses to find out thearea and circumference of circle. diameter=2*radius
Rings, Earing's, and Bracelets
Worn engine rings or valves Worn engine rings or valves
There is no single diameter - there are steel rods of different diameters for different uses.
* Floor Exercise * Rings * Pommel Horse * Parallel Rings * Vault * High Bar
Jewelery like rings and earrings.
TOYOTA
They use bullets of the same diameter, but with different weight ranges, which happen to overlap. The .380 uses a 9mm diameter bullet in a 17mm long case. The 9mm uses a 9mm diameter bullet in a 19mm long case.