ECM WiringSpecification:Material: BrassQuantity: 100 piecesLine square: 0.5-1.5 square millimetersMetal material: brass ( pickled or tin-plated to prevent oxidation)Product size: 14.7 mm (length), 2.9 mm (copper feet) low foot, 4.0 mm (leather feet) high footWiring range: 0.5-1.5 mm²Role:1) When the line is not long enough to connect2) Subjective or objective reasons (the middle line is broken and can be reconnected)Warm reminder: All models do not include wiring