Muskie Bumper - Tri Fold Bump N Go with TRO LogoMaking the great Bump N Go even better with the Tri Fold Bump N Go. This is the most compact way to get an accurate measurement of your catch. Muskie Bumper bump boards are constructed of a very durable plastic material that will stand up to the harshest elements and fishing conditions. Just like the other Muskie Bumpers, the Tri Fold Bump N Go measures fish down to a quarter of an inch to make sure you get an accurate measurement every time. This