Product Feature High Quality: The wire connectors are made of high quality copper, has good electrical conductivity. Tin plated on the surface, make them has a better anti-oxidation and corrosion resistance. Performance: Butt splice connectors easy to connect with electrical wire and strengthen its reliability and safety; Wire stop structure is conductive to insertion wire in right space to ensure the effect of compression. Easy to use: The uninsulated butt connectors are great for non-bulky splices, simplify the process of electrical splicing. Function and Use: These wire crimp butt connectors are works good when building custom wire harnesses or making repairs to existing wiring. Package Include: This wire connectors kit includes 22-16AWG 16-14AWG 12-10AWG bare crimp connectors, 200 Pcs electrical butt connectors packed in a plastic box. Product Specification Material Copper Color Sliver Quantity200Pcs Wire Sizes 10 -12 AWG / 14 -16 AWG / 18 - 22 AWG Package Included 80 x BNT1.25 22-16 AWG (0.5-1.5mm?) 60 x BNT2 16-14 AWG (1.5-2.5mm?) 60 x BNT5.5 12-10 AWG (4-6mm?) s