The Wet Sounds ANL Fuse Holder was designed for the marine environment to securely protect current transfer from your battery to amplifier. This fuse holder can accept one ANL fuse or up to two mini ANL fuses. The nickel-plated terminals can accept up to 1/0-gauge power, or using the included reducers, can accept 4-gauge power wire. Countersunk screw holes are provided to allow mounting the holder to a flat surace, as well added tie-strap slots to secure your wire in place. A must-have for any amplifier installation.