Butt Connectors included: (40) 22-18 AWG, (75) 16-14 AWG, (40) 12-10 AWG Ring Terminals included: (25) 22-18 AWG #8, (25) 16-14 AWG #8, (50) 16-14 AWG #10, (25) 12-10 AWG #8, (25) 12-10 AWG #10 Disconnects included:(50) 16-14 AWG fully insulated female,(30) 16-14 AWG fully insulated male,(25) 16-14 AWG female,(30) 16-14 AWG male The tinned copper gives the least electrical resistance but the most corrosion protection Our nylon insulators are easy to crimp and will not split, and the barrels are designed to tightly grip the wire with the least effort