1Premium Material: The quick release disconnect car battery terminal is made of pure copper with tin?plated, sturdy and firm enough for long term usage, and it would not deform or corrupt easily. 2Good Electrical Conductivity: Battery terminal connectors have good electrical conductivity, thus it can decrease voltage distortion and transmission loss. 3Wide Range of Uses: This battery terminal with hex wrench is suitable for most battery models and various automobiles including car, van, caravan, motor home, trailer, truck, and so on. 4Good Workmanship: Super wear resistance, reduce current transmission loss. Good workmanship, long durability, suitable for all kinds of difficult environments. 5Package Content: Package includes 2 pieces battery terminal connectors, and 1 piece hex wrenches, sufficient to meet your daily requirements, bringing convenience to you.