Viking Yggdrasil Tree of Life Challenge Coin is 1.57 inches in Diameter and 0.12 inch Thick Challenge coin is meticulously crafted from high quality solid antique brass. Vegvisir is the symbol of guidance, maintaining course and protection The Vegvisir means “That Which Shows the Way.”It is believed to provide guidance for a person who might lose their way A great gift for the traveler, explorer, adventurer, or the person who likes Viking history. A great gift for the traveler, explorer, adventurer, or the person who likes Viking history.