The compass has a highly visible 65mm card - the card is spherical so readable from a wide range of viewing angles. The card is well damped to cope with harsh and demanding conditions encountered on RIB installations. C3002 - Surface compass for RIB or kayak with 65 millimetre conical rose. Our smallest compass is ideal for use on RIBs and kayaks. The C3 compass mounts easily on a flat surface so no hole is required. The C3's rose allows for a 40° roll making it an ideal compass for kayaks. The conical rose is specially designed to be read while standing or sitting. Vessel type: RIB or kayak Rose size: 65 mm Rose style: Conical Graduation: Every 5.0 degrees Lighting: 12V Protective Cover: N/A Warranty: 2 years