9V Battery Snap with JP2411-2P ConnectorSpecifications Battery Cell Size: 9V Number of Batteries: 1 9V snaps with 4" lead wire terminated with a JP2411-2P connector. (Mates with 2-pin headers such as Jameco p/n: 232266) Terminal orientation: I typeOther 9V Holder/Connection Options 9V Battery Box with 2.1mm Barrel Plug (cover & switch) 9V Battery Holder with 2.1mm Barrel Plug (open-type) 9V Battery Snap with 2.1mm Barrel Plug on 6" Wires