InstallGear 1/0 AWG Gauge Gold Ring Set Screw Battery Ring Terminals (4 Pack) 1/0 Gauge input - (4) 1/0 Gauge terminals (as pictured) Gold plated for maximum conductivity Set screw style to ensure tight wire fit Red/Black gear logo to differentiate between positive and negative 1/2" wire input and 5/16" ring hole size 1/0 Gauge input Gold plated for maximum conductivity Set screw style to ensure tight wire fit Red/Black gear logo to differentiate between positive and negative 1/2&#034; wire input and 5/16&#034; ring hole size Includes: (4) 1/0 Gauge terminals (as pictured)