Arrange your fish finder at the perfect angle on your watercraft with this heavy duty 2.25 ball mount.Designed for 10- 12 fish finders.Pre fabricated holes on the top plate allow easy installation of your gimbal mount bracket.The square base securely fastens with bolts.2.25 ball design has superior strength and reliable holding power.Constructed using engineeringgrade Nylon and stainless steel fastenersto last a lifetime.2.25 Ball mount with fish finder top plate.