EXIDE NAUTILUSMARINE by EXIDE BAT. XXB adjustability to fit chest sizes Color:Peak Bagger adjustability to fit chest sizes from 30 to 58 inches is why this prop was made BCI Group Number : 27 Battery Type : Marine RV Dual Purpose Voltage : 12 Volt Terminal Location : Top Cold Cranking Amps : 575 Amp Cranking Amps : 730 Amp Reserve Capacity : 160 Minutes Length (IN) : 6 13 16 Inch Width (IN) : 12 Inch Height (IN) : 9 7 16 InchSureLife Graphite Technology Maximize Available Energy Capacity Helping Batteries Perform At Higher Levels LongerAbsorbed Glass Mat Construction Helps The Batteries To Be Sealed And Spill Proof Vibration And Corrosion ResistantSpecial Valve System Helps The Water Recombination Reaction