This product is a convenient and practical main battery power-off . The main material is ABS and iron. It is safe and durable and will serve you for a long time. Has good working performance, can play an excellent protective role, and safely disconnect the battery. This is a very efficient and practical power-off , which can be widely used in vehicles, RVs, ships, etc. Features -Color: Assorted. -Material: ABS, Iron. -Size: About 7.62X6.99X6.99cm/2.99X2.75X2.75inch. -Terminal size: 10mm/0.39 inch. -Continuous rating: 275 amps DC. -Intermittent rating: 455 amps DC. -Starting rating: 1250 amps DC. -Rated voltage: 12-48V DC. -Scientific design, good protection effect, your safety to extent. -The operation is simple, and it can be stably installed on the operation panel, can use it with confidence. -Help you disconnect the power safely and easily, bringing you more convenience. -It is used to isolate and fix electrical systems. It can be locked together with other alone, which is very practical. -Universal design can be well applied to the electrical equipment of most vehicles. Package list: 1 x isolating 4 x bolts 4 2 x heat shrink tubes