Specification: 4 way mini ANL fuse holder 0/4 gauge input 4/8 gauge output. 60A fuse distribution block has stable performance and long service life. Feature: To prevent excessive current, protect electrical appliances, and prevent safety hazards caused by overheating of lines. Complete Package: 20PCS X 6 gauge AWG - 1/4 inch wire copper ring terminals connector w/20 pieces of 3:1 ratio dual wall adhesive heat shrink tubing (10 black and 10 red) for meeting your different needs. PROFESSIONAL QUALITY MADE: RED WOLF battery cable ends are adopted for bare annealed copper material with a special treatment surface for corrosion protection. Solid & heavy duty copper lugs get a good transfer of electric in battery and achieve maximum current flow. 3:1 ratio heat shrink tube is polyolefin material made, which is non-toxic, temperature up to 257°F and flame-retardant, ensuring secure use, strong crimp and adherent. WIDELY USEAGE: Wire lugs ring terminal connectors meet USA American standard copper wire connectors. It is suitable for emergent cable repairing and replacing OEM battery terminals. Battery ring terminal ends are a joint connector from wiring cable to automotive electrical engine equipment solar panel system, golf carts, power inverter, RV's, marine, home appliances and DIY electrical wiring that vitals for stable installation, effectively preventing poor contact and short circuit. EASY INSTALLATION: RED WOLF all of copper ring terminals are marked a specification indication to help you conveniently and easily to locate the correct terminal. And battery cable lugs are high standard flared opening for easy wire insertion. 60A ANL fuse installation: From the battery or power source there is left/right/or straight so you can mount it and choose from 3 directions where to run the power into the block. Brand RED WOLF