This natural wood ash catcher has been engraved with a Tree of Life symbol on the bottom and an exotic tribal pattern flanks the center groove. Each ash catcher is 2 inches wide, which makes it a perfect choice for mess free incense burning. For use with incense sticks up to 10 inches. Exclusive Design. SYMBOL: The tree of Life is the structure on which the universe is built. It explains the immutable laws of Nature.