Most globes have a metal ring either full circle (Full-Meridian) or half circle (Semi-Meridian). 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 many globes now include 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.
NOTE: Not all meridians are numbered. If this is important to you, please view product specifications or the product images closely to see if a meridian includes this feature.