[Includes Most Popular Sizes] In this set, we offer 8 types 60Pcs of AWG 10, 8, 6 and 4 gauge wire connectors and 60pcs Heat shrinkable tube. SC6-6(10pcs)wireway:6mm²(10 AWG), aperture:6mm SC6-8(10pcs)wireway:6mm²(10 AWG), aperture:8mm SC10-6(10pcs)wireway:10mm²(8 AWG), aperture:6mm SC10-8(10pcs)wireway:10mm² (8 AWG), aperture:8mm SC16-6(5pcs)wireway:16mm² (6 AWG), aperture:6mm SC16-8(5pcs)wireway:16mm² (6 AWG), aperture:8mm SC25-6(5pcs)wireway:25mm² (4 AWG), aperture:6mm SC25-8(5pcs)wireway:25mm² (4 AWG), aperture:8mm  60pcs Heat shrinkable tube Black φ 7mm length 35mm - 20pcs Red φ 10mm length 35mm - 40pcs [Heavy Duty Wire Lugs] These battery cable lugs are made of high quality thick copper and can be tightly crimped. [Corrosion Resistant Tinned Copper Lugs] For maximum conductivity, all battery terminal connectors are covered with tin to prevent corrosion. SC ring terminals allow cable insertion for inspection. [Reliable and Easy to Use] All the cable lugs are common size which meet the US standard. Terminals with heavy duty construction improves high temperature durability and ensure connection reliability; high standard flared opening for easy wire insertion. Meanwhile, these battery lugs can be crimped or soldered to the wire cable ends depending on your preference. [Wide Applications] These battery cable wire lugs are ideal used for distribution box, marine, golf carts, solar panels, home applications, etc. ABRASION RESISTANCE HEAT SHRINKABLE TUBE: Premium tube materials are specially designed to be used in harsh environments. Protect the wires and cables from abrasion, cutting, scuffing and low impact situations.