This item is a high current rated bus with M8 terminal studs. Glass fiber reinforced nylon base and enclosure for great mechanical strength and durability. High current-rated bus with M8 terminal studs and removable for convenient wiring, providing convenience for your use. Features -Color: Black -Material: Nylon and Glass Fiber and Brass -Size: About 13.90X7.00X4.60cm/5.46X2.75X1.81in -Operating Voltage: DC 48V -Max Continuous Amp: 300A -Terminal Size: 4 x M8 (5/16") -Detachable design: The power distribution block is designed with a detachable side panel and an insulating cover, easy to disassemble. -Excellent design: The bus ensures excellent mechanical strength and durability. -Good texture: Fine workmanship and good texture ensure the bus 's practicality. -Wide range of uses: Modular , easy wiring configuration, suitable for boats, cars, etc. -Easy Installation: Mounting holes make it easier to install the terminal block in any orientation. Package list: 1