1Easy installation: This product converts the side terminal battery into the top column, and each charging column has a hexagonal nut loop that can be tightened with a wrench, which is very convenient. 2Fitment: Thread diameter: 8mm; Thread length: 10mm; The bottom note is positive (+) or negative (?); Positive (+) diameter: 17?19mm; Negative (?) diameter: 15?17mm. Please confirm whether it is compatible with the battery cable terminal you need beforehand. 3Applicable Objects: These battery side Charging station are only applicable to threads on the car battery and are not suitable for any type of motorsport battery. Please do not use them incorrectly. 4Premium Material: Battery cable terminals are made of premium material that are resistant to corrosion and rust and have a long service life. Professional manufacturing can avoid that car fails to start properly. 5Safe Connection: Battery terminals are connected to the battery and battery cables using various techniques such as screws, or wing nuts. Connection will be more than safe without potential dangers. 6Key Role: These terminal Charging station are used to charge the side pillar battery of the car and convert the side battery into the top pillar battery of the car.