Hard plastic case makes this 9v connector more durable and safe, and makes the connections more stable.
Inner part of the 9V clip where contacts the battery electrode that is copper plated with nickel, it prevents oxidation and has better conductivity.
The bare end of the 9 volt connector is with wire leads, it's tinned. Cable length: 15 cm/5.9 Inch; Inner copper wires number: 7; Per copper wire diameter: 0.14MM
Comes with 12 pack/1 dozen 9V battery connectors (9V battery is not included).
All these 9 volt battery clip connector are only suitable for 9V battery and 9V battery holders, please make sure this when buying this items.
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