Specifications:

The bus bar is measured (L x W x H): 138 x 69 x 44.5mm (5.433"x2.72"x1.75"). Stud size: M8 (5/16"). Bus Material: The battery distribution block is made of brass and nickel plated, which has good electric conduct performance and sturdy rust-resistant. The base is made of nylon - glass fiber reinforced to protect your safety, ensures great mechanical strength and durability. The power distribution block With four removable side plates, a insulated rear cover, that's designed to withstand rain and dust,resist the air and seawater erosion. The battery terminals base has non-slip sponge, increased Stability. And the blank write-on space on the top allows easy labeling for each branch. RV terminal blocks surface screw fixed installation, four mounting holes make this terminal block easier to be mounted in any orientation.Removable windows for unobstructed wiring.