[Product Name] - Bus bar terminal block 12v, these battery bus bar 12v will come in pairs, includes one positive bus bar (red) negative bus bar (black).[300A M10 Stud Busbar] - This battery distribution block can handle max 300A continuous amperage at Max 300V AC or 48V . Each battery terminal block includes - 6 x M10 (3/8Inch)terminal studs.[Round Corner Base] - This 12v bus bar is unique round corner base design, which makes the marine bus bar unique and special, looks more extraordinary compared with others.[ Cover] - The exposed area of two side of this 12v distribution block cover allows 180 wire lug installation, can meet a kinds of install methods of end terminals.[Application] - This 300A bus bar will have better performance in high current systems. The package includes one positive ground distribution block, suitable for automotive, car, marineColour:Black & RedMaterial:Plastic+MetalPackage Contents:1 * Red Positive Bus Bar1 * Black Ground Bus Bar4 * Mounting ScrewsOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.