OSP Measure 140 cm Salt Model 155 x 20 cm Black (7743)Saltwater rated measuring board with 140 cm (55. 1 in) total length. Features a 155 x 20 cm (61 x 7. 9 in) flat measuring surface marked in 1 cm increments. Constructed from durable, salt resistant black composite material. Includes a built in stainless steel hook for securing fish during measurement. Designed for accurate length recording of saltwater catches including tuna, billfish, and other large species. TARGET USE: Saltwater species measurement