(75pcs Solder Seal Wire Connectors + 135pcs Heat Shrink Crimp Butt Connectors). HOW TO USE HEAT SHRINK CRIMP BUTT CONNECTORS?. (3) Twist and insert into splice barrel in the middle. WHAT YOU GET: This wiring connectors kit includes 135 pcs 4 different sizes heat shrink wire connector; Plus 75 pcs 4 different sizes solder seal butt connectors.
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