Take on wiring projects with confidence using the Sopoby Marine Grade Heat Shrink Wire Connectors Kit. Built with upgraded red copper and designed for durability, these connectors provide waterproof, vibration-proof, and long-lasting performance ? perfect for automotive, marine, and DIY electrical projects. ? Key Features: Marine Grade Construction ? Covers AWG 22?18, 16?14, and 12?10 gauges in 3 colors and 8 sizes, including ring, fork, spade, butt, and hook terminals. Upgraded Red Copper Material ? Ensures excellent conductivity, reduced voltage drop, and protection against rust and oxidation. Reliable Waterproof Seal ? Dual-wall polyolefin tubing with hot-melt adhesive provides a tight, environmental seal. Enhanced Wire Contact ? Brazed-seam copper barrel prevents splitting, increases current flow, and keeps wires secure. Durable Rugged ? Puncture-resistant, abrasion-resistant, and heat-resistant for tough environments. ? What?s Included: Heat shrink butt connectors Ring terminals Fork terminals Spade connectors Hook connectors Male/Female spade terminals ? Specifications: Wire Range: AWG 22?18, 16?14, 12?10 Standards: ROHS, ISO 9001:2008, SGS, CE compliant Color-coded with gauge imprint for easy identification Transparent for visual inspection ? Wide Applications: Perfect for use in motorcycles, cars, trucks, boats, trailers, lighting systems, and general DIY electrical projects.