This is a Plank Bender from Latina.
FEATURES: Black plastic construction.
Scores the inside of the plank, bending it to fit the bow and stern.
Includes one extra blade.
INCLUDES: One Plank Bender.
SPECS: Length: 7" (17.8cm)
COMMENTS: You use this tool, by putting tiny creases in the planking strips.
The creases help with putting a bend (bow) into the wood to help it
shape it against the hull or follow the contours of the hull.