dimensions are 3 1/4 inches x 3 1/4 inches x 1 inch tall.
Aluminum casting will not rust.
Certified Aluminum Alloy 319.1 Tensile strength of 27,000 pounds per square inch
MADE IN THE USA ASTM 26-B Highest Standard in the industry
Seller has more listings of plinth and bases, and will custom an order for you.
I am the manufacturer, you deal direct.