SmartStrike takes you straight to the action by showing you where the fish should be biting at any given moment. Based on search parameters like season, time of day, temperature and targeted fish species, SmartStrike highlights areas of the lake map where your prey is most likely to be located - before you even wet a line. Made from durable materials for long life use.Humminbird smartstrike micro sd cardExpertly crafted from premium materialsDesigned to match rigorous quality standardsCorrosion resistant and durableMade from durable materials for long life useDimensions: 1"H x 5"W x 7"DMaterial(s): metal