Ram Mount Track Ball Mount f/Lowrance Elite, Hook Mark-4 Series Fishfinders [RAP-B-202-LO11-354-TRA1] Camping The wrench matches the shape

The wrench matches the shape of the knob found on the side of "D" arms

Great for backpacking

8 x 12mm Threaded Stud Adapter

Combined with optic reading this transducer provides superior accuracy at low wind speeds and also provides for excellent linearity

Ram Mount Track Ball Mount f/Lowrance Elite, Hook Mark-4 Series Fishfinders [RAP-B-202-LO11-354-TRA1] Camping The wrench matches the shapeTrack Ball Mount with Marine Electronic Plate for Lowrance Elite 4, Hook 4 & Mark 4 Series Fishfinders The RAP B 202 LO11 354 TRA1U consists of a Track Ball base, composite double socket arm and adapter base that 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. A key feature of the mount is a 1" diameter