1、Side slot allows easy placement of electrical wires. 2、Quick wiring without wire striping required. 3、Necessary auxiliary materials for car circuit construction, easy to use and reliable contact between the merged wire, no bad phenomenon. 4、Merger wire, not loose, secure insulation, will not leak.  5、Come with a plastic storage box for easy carry and use. 40 x Red Wire Connector40 x Blue Wire Connector40 x Yellow Wire Connector Item Type: Wire ConnectorContact Material: Zinc Plated BrassInsulated Material: PVCWorking Frequency: High FrequencyBlue:Quantity: 40pcs (20 pairs)Male Spade Connector Length: 2.4cmQuick Splice Wire Connector Length: 3.7cmDiameter: 0.45cmTerminals Width: 1.1cmTerminals Spade Width: 6.3mmSuitable for Wire: 16-14AWGCross Section Area: 2.5- 4.0mm²Red:Quantity: 40pcs(20 pairs)Male Spade Connector Length: 2.4cmQuick Splice Wire Connector Length: 3.7cmDiameter: 0.35cmTerminals Spade Width: 6.3mmTerminals Width: 1.1cmSuitable for Wire: 22-18AWGCross Section Area: 0.5- 1.5mm²Yellow:Quantity: 40pcs(20 pairs)Male Spade Connector Length: 2.5cmQuick Splice Wire Connector Length: 3.7cmDiameter: 0.7 cmTerminals Spade Width: 6.3mmTerminals Width: 1.1cmSuitable for Wire: 12-10AWGCross Section Area: 4.0mm²