Wood (laquered or treated), Metal, Stone, Bio-degradable, Enamled (such as Cloisonne), Leather, Lost Wax, Porcelain, are among a few.
General Size Ranges of Urn Type Categories:
Adult Full-Size Urns: 176 - 250 cubic inches.
Adult and Companion and Oversized Urns: 251+ cubic inches.
Cremation Jewelry: .001 - .999 cu. inches. .
Keepsake and Child Urns: 11 - 175 cu. inches.
Token Urns: 1 - 10 cu. inches