Diameter of the bell is as long as 60 centimeters, which marks the 60th anniversary of UN. The length from the top to the bottom amounts to 2005 centimeters symbolizing the fact that the bell is made in the year of 2005. The mallet, made of wood, embodies what UN stresses as “the updates of the era”: warning people against cutting down trees and desertification and encouraging the preservation of ecology.