ECM WiringSpecification:color: WhiteSize: White Connector: suitable for cable/wire size 0.25-0.5mm2, 26-24AWG, 28mmuse:Step 1 Strip the wire and insert it into the splice barrel.Step 2 Use professional tools to crimp the connector.Step 3 Use a heat gun to melt the solution. The connector will automatically retract.Step 4 Create a proper watertight seal.Package includes:10pcs X heat shrink butt connector