450mm straight wobble arm only  - Light weight due to  the thinner mounting plate.

25mm gullwing bar, 450mm with M16 bolt hole, centre hole to underside of bar - 25mm, suits a 40x40mm arm carrier

Fully galvanised and suitable for light weight boats (5m or less), suits a 40x40mm arm carrier 

No rollers - just the arm. See complete straight arms for full assembled.