Most globes have a metal ring either full circle or half (semi) circle. These rings are called meridians and they are generally numbered in degrees from 0 at the equator to 90 at either pole. Originally, meridians were used to help locate positions on the globe, but since most reference globes have the longitude and latitude lines on the maps, the numbers on the meridian have become less important. The ring itself still serves to hold the globe ball in position.