HEAVY 10 gauge wire can handle more than a regular 30 amp or less fuse. ATC is the quantity used in cars until recently and is great for cars, boats, ATVs and motorcycles. My hobby is being a radio amateur and I use fuses to keep my equipment, cables and home out of trouble. The rubber snap cover perfectly protects the fuses from bad weather, dirt, dust, blood. I just shouldn't use sharp tools. The price and quality of these fuse holders can't be beat. The wire comes in a "LOOP" (as shown) so you can cut a leg longer if needed.