How to use the magic sponge:

Its compact size makes it easy to install exactly where it is most convenient for you – on the bulkhead or even in the armrest of the captain’s chair

UV radiation: Prevents fading and degradation of surfaces

A microSD™ slot lets you expand the memory even further to load additional mapping

Versatile use: Perfect for wiping

Afdækningscover (sølvfarvet/sort) Wearables How to use the magicDon't let a missing or broken cover spoil the beauty of your cockpit. Use our replacement cover to mount your GMI 20 digital marine instrument display or GHC 20 marine autopilot control unit. Or simply use the cover piece to help adapt your GMI GHC to your older chartplotter, such as the GPSMAP 4000 5000 6000 7000 or GPSMAP 4x1 5x1 5x6 series.