Introducing the New Tyrant Roll Away bump board. Tyrant’s bump board is made out off heavy duty woven vinyl with a 3″ plastic bump. This bump board will enable you to measure fish up to 64.25 inches. The board is 10 inches wide and rolls away to a 4 inch diameter by 10 inches tall. Space on fishing boats is critical, simply roll out the board measure your fish, wipe dry and roll the board away. Another great tool for your boat this musky fishing season.