Our battery cables come with either 5/16″ or 3/8″ ring terminals depending on the battery cable size.It is our belief that we have the best 4, 2, 1/0 and 4/0 AWG battery cables that are on the market today. These cable sets have Adhesive Lined Irradiated Polyolefin (PO) heat shrink, which is exceptionally resistant to water, fungus, and UV light.