Features:Emergency protection: This kind of circuit breaker can turn off the power in emergency sensitively, making sure your security and avoiding electricity accidents.Wide use: The circuit protector is a good protective supply for trucks, for cars, boats, marines and other vehicles, it can be used to control the large-current circuit.Sturdy: This marine fuse holder is made from plastic, which is durable and long-lasting, you can use it for a long for time without worrying about being cracked or broken.Portable: Designed with a small and lightweight, this fuse holder is easy to store and carry, it will not occupy so much space of your vehicle.Manual reset: You can reset the fuse and circuit manually by pressing the long handle to the regular position after repairing, not easy to make trouble for you. Specifications:Material:Zinc AlloySize:Approx.10x4.2x4.3cm/3.97x1.65x1.69inchesColor:BlackRated current: 20A/80A/100AVoltage: 12-48 (V) Note:1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.Thanks for your understandings. Package includes:1x Circuit Breaker