Universal 6.25 Inch * 2 Inch Plate with 1.0 Inch Dia. Rubber Ball
Price: $16.49
Universal 6.25 Inch x 2 Inch Mounting Plate (Fits Many 9"-12" Fishfinders and Chartplotters) with 2.25 Inch Diameter Rubber Ball
Price: $35.99
Universal Mouting PLATE 6.25 Inch * 2 Inch with 1.5 Inch Dia. Ball
Price: $19.49