1. Fuse and fuse holders is made of high quality material, gold plating terminal contact for corrosion resistance, plastic case, easy to see, install and waterproof. 2. ANL fuse holder is suitable for circuits with a rated voltage of 32V, provides protection for speakers, stereos, and other components,can be applied on car, boat o video systems good accessory for car o and other high current applications. 3. The washer design nuts and copper plate design holder also makes the fuse and wire lugs fully contact with the fuse block, makes it become much safer for high amperage use. 4. Stud size: 8mm, 5/16 inch (for use with 0,4,8 or 10 gauge ring terminals) 5. Material: ABS + metal