Material: Crafted from superior-quality zinc alloy, our battery terminals boast excellent resistance against and are incredibly , ensuring long-lasting performance in a variety of environmental conditions. Specific Dimensions: Designed to accommodate diverse needs, our connectors feature a thread size of 8mm,Thread Size: 8mm; Dia(+)17-18mm; Dia(-): 15-17mm. offering a precise fit for most batteries. Universal Compatibility: Equipped with a versatile 3/8 inch female thread, these connectors are perfect for use with nearly all types of batteries that have a stud on the top or side, making them highly adaptable for different automotive setups. Comprehensive Package Contents: This convenient package includes two positive and two negative battery post terminals, providing a complete set to meet all your vehicle battery connection needs without the need for additional purchases. Note: the actual slightly color difference or difference, does not affect the use of Colour:Silver Material:Metal Package Contents: 2 x Battery Positive Pole 2 x Battery Negative Pole Only 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.