The Structural Brace is designed and engineer to have the highest strength to weight ratio this super strong brace is made of high carbon, heat treated steel to meet high Rockwell standards. The Structural Brace has a tough natural stone gray color powder coating to blend into your granite counter for an invisible countertop support look. The real strength of the brace is in the W like shape design that gives the brace it's incredible strength compared to other flat type braces. The Structural Brace package comes with 4 braces 2-1/2 inches wide by 13 inches long and 3/16 thick.