110 Copper is anneal resistant, and is supplied in the 1/8H (hard) or 1/4H condition. (. 375” X 1.50” X 1.50” ). 99.95% PURE COPPER! THE LENGTH AND WIDTH HAVE A TOLERANCE OF PLUS 1/16” MINUS ZERO. THE TOP AND BOTTOM SURFACES HAVE A SMOOTH STANDARD PLATE FINISH WITH MINOR SCRATCHES AND DINGS POSSIBLE, THE SIDES HAVE A STANDARD BELT SANDED FINISH.