The wood is solid American Black Walnut, and supported by a 1.25" boxed steel frame. The live edges in the wood have been flipped inward and filled and sealed with ultra-durable epoxy resin, which can be dyed almost any color you'd like. The table pictured in the listing used transparent, blue resin.
Resin is customizable and can be done in metallic, other transparent colors, or opaque colors.
Standard Specs: 50 x 13 x 16H