Butt Connectors 100 PCS Insulated Straight Wire Butt Splice Terminals Electrical Crimp Connector Assortment Kit Wire Strippers Model: BV1+BV2+BV5; Material: Copper + PVC. Insulated butt crimp terminals connector, suitable for automotive use, Please crimp one side of the butt connector with professional tool or they will be lose. Insulated butt connectors, come with models: BV1 BV2 BV5 Connector Guage: 18-16(Red), 16-14(Blue), 12-10(Yellow). Insulated crimp terminals butt connector, suitable for automotive use, Please crimp one side of the butt connector with professional tool or they will be lose. Insulated butt connectors, come with models: BV1 BV2 BV5. Material: Copper PVC Guage: 18-16 (Red), 16-14 (Blue), 12-10 (Yellow Insulated crimping terminals butt connector, suitable for automotive use, please crimp one side of the butt connector with professional tool or they will be lose. 100Pcs Electrical Cable Connectors Quick Splice Lock Wire Terminals Crimp Wiring Card Clip Home Electrical Appliances 16 14awg If wires slip out after crimping or the wire is under 20AWG, please double the wire and use the professional tool, or take care of different color butt splice connectors suits different gauge type wire.