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Heavy-Duty Design –   6 AWG cable butt splice connectors, nickel-plated with thick walls for a secure, professional-grade connection. Much stronger and more reliable than standard crimp butt connectors. 
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Perfect Size for 5–6 Gauge Wire – Connector length 30mm, inner conductor diameter 6mm, designed for 6 AWG and 5 AWG power or ground wire splicing. 
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Wide Application – Ideal for connecting battery cables, amplifier ground wires, truck/camper audio amps, marine and boat trolling motors, car power wiring, and other heavy-duty electrical connections. 
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Advanced Insulation Protection – Dual-wall heat shrink tubing with heat-activated adhesive ensures a tight seal against moisture, abrasion, and strain. Provides waterproofing and long-lasting insulation. Red and black tubing easily identify positive (+) and negative (–). 
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Complete Package – Includes: 
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2 ×  Butt Splice Connectors (AWG 4/6) 
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4 × Extra Screws 
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2 × Red Dual-Wall Adhesive Heat Shrink Tubing 
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2 × Black Dual-Wall Adhesive Heat Shrink Tubing