The Frabill 1551 Benchmark Measuring Board allows for quick measurements right after your catch! Put away the tape measure, or any other hand-held supposedly convenient device- this board has 'em all beat! Ideal for measuring the lengths of any fish in freshwater and inshore saltwater, this measuring board is constructed of premium gold-anodized aluminum and is completely non-corrosive for heavy-duty use in fresh and saltwater. This board features laser engraved markings every 1/4-inch for accuracy and large numbers for easy reading.