Feature:
Made of Copper, good conductivity and corrosion resistance.
Positive(13mm) Battery Terminal Connector + Negative(11mm) Battery Terminal Connector.
It can be used for battery extension, parallel connection, and ground connection.
Thread already on terminal, NO nuts to make it faster and easier on Installation.
Wide Application in Ship Boat Small yacht RV truck.

Specification:
Material: Copper
Dimension: 40mm x 28mm x 20mm / 1.57" x 1.1" x 0.79" (L*W*H)
Thread Dia: 6mm / 0.24", 5.6mm / 0.22"
Positive Inner Diameter: 13mm / 0.51"
Negative Inner Diameter: 11mm / 0.43"

Package Contents:
1 Pair x Battery Terminals