The RAM-D-202U-RM1 consists of a 2.25" ball connected to a 3.68" diameter round base that contains pre-drilled holes that connect to Raymarine devices listed below.
Material:
Powder Coated Marine Grade Aluminum
Ball Size:
2.25" Rubber "D" Ball Size
Note:
The "U" in the part number reflects product packaged in poly bag.
D Size 2.25" (Hold up to 6 lbs)
Holder
Powder Coated Marine Grade Aluminum
GPS
Packaged in Poly Bag
Raymarine
A50
A50D
A57D
A70