The RAM-B-202-LO11 includes a 1" diameter rubber ball and inserts directly to the back of Lowrance Elite 4, Mark 4 and Hook 4 Fishfinders. The adapter serves as a quick release mechanism, allowing you to remove or transfer your Fishfinder in seconds.

Material:
Powder Coated Marine Grade Aluminum

Ball Size:
1" Rubber "B" Ball Size 

Note:
Part number reflects product packaged in clear clam shell for store shelf display. RAM recommends this adapter base for "Light Use" mounting applications, including light weight Lowrance Elite and Mark Fishfinders.