A mace is made of metal, even the haft, which makes it quite heavy and very hard to break.
Simple, Light Weapon
Cost: 5gp, Weight: 4lb
Dmg (S): 1d4, Dmg (M): 1d6, Dmg (L): 1d8, Critical: x2, Bludgeoning
Source: Player's Handbook
page revision: 2, last edited: 11 Apr 2011 13:53