JustTop 200 PCS Waterproof Heat Shrink Butt Connectors ,Electrical insulated wire connectors kit for marine, automotive, Home use, 3 sizes/3 colors for different needs: Red/22-16 AWG, Blue/16-14 AWG, Yellow/12-10 AWG. Specification: - Shrinking ratio 3:1 -Waterproof, anti-corrosion, no leakage, shockproof, durable - Minimum recommended shrink temperature: 80°C / 176°F - No wire damages due to low shrink temperature - Best shrink temperatures: 125°C - 130°C / 257°F - 266°. -Hot-melt adhesive provides excellent waterproof property -Excellent stretch and mechanical damage resistance -Ideally translucent provides tensile strength -High elasticity keeps steady performance - Wide variety of sizes and colors. - For best results we recommend the use of a heat gun. 200 pcs HEAT SHRINK CRIMP WIRE CONNECTOR KIT: Red : 22awg - 16awg (90PCS -Suits cable/ wire size 0.5-1.5mm² 16-22 GA ) Blue: 16awg - 14awg (90PCS-Suits cable/ wire size 1.5-2.5mm² 16-14 GA) Yellow: 12awg - 10 awg (20PCS-Suits cable/ wire size 4.0-6.0mm² 12-10 GA) Friendly Reminder: For best results , please choose the right connector, use a hot air gun, heat evenly until connector reduces in size and the adhesive flows, filling gaps within the terminals. Guarantees: * JustTop guarantees all buyers 100% satisfaction, once you find any problem of the product, please feel free to contact us, we will solve it as soon as we can. * 100% Satisfaction Guarantees for risk-free shopping!