【Red Copper Nickel Plating】Nickel plating on the surface, red copper inside. Made of grade A red copper with nickel-plated which offers a higher level of chemical and corrosion resistance. 【 Ingenious Quality 】 Our bus bars are manufactured by advanced laser equipment and strict quality inspection standards. It has high strength and hardness, no scratches and very smooth. It can work well under hot condition and high current condition. 【 Safe to Use 】 Designed for durability, and tested to meet S.A.E conductivity standards J163 & J1811; UL listed to U.S. & Canadian saftey standards; RoHS & REACH compliant. 【 Widely applications 】 Perfect for LiFePO4 Cell lithium batteries DIY, such as 3.2V 20Ah 50Ah 80ah 100ah 120ah 200ah 280ah 300ah,etc.It is applicable to all kinds of lifepo4 cells. The design of elliptical holes gives the battery a bulge space, and it can also be added with insulating plates to make the battery safer. 【What You Get】Freedom to choose from a variety of Pitch Row and pack quantities, that fit your requirements and applications; Can be soldered or use with M6 screws; Recommend to check bus bars dimensions to ensure a proper fit. 24-months warranty and friendly customer service. Pitch Row 3.34" Bus Bars Connector Red Copper Nickel Plate Busbar 85mm