The 24" Rapala Folding Ruler is a fish measuring device which conveniently folds up for ease of storage and transport. The folding ruler, from Rapala, allows fishermen to get accurate measurement of all your fish for tracking your catch or qualifying catch for slot limits. Includes fold up end wall to bump fish against for extreme accuracy. Ruler features large, easy-to-read numbers molded into high impact plastic, large enough to show up in photos. Includes both inches and centimeter measurements. Includes mounting holes for permanent installation or folds for compact storage.