This is a fiberglass driver's side running board for a 1947 - 55 first series Chevy or GMC 1/2 ton shortbed truck. It is heavy duty and weighs about the same as a steel one. The braces underneath are made of steel. It has the ribs across the top like the original ones. It has one small crack on the end as seen in the 2nd picture. The price is $150 obo.