4005 Standard CableCap - Small PairFeatures:. Cable Size - 4, 2, 1. Pair - Red/Black. Insulates battery terminals which have added adapter terminals. For batteries with marine adapter terminals added on. WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.