Feature 1.100% brand new and high quality 2.Suitable for DIY Battery Pack You will get18650 Li-Ion Battery Holder -Pure Nickel Strip(not include batteries ). Installation: Easy and simple to use and operate, no other tools needed to install.Install the battery according to the positive and negative sides on the circuit board. Be careful not to reverse it. High quality battery holder case with wire leads for easy soldering and connecting.Each battery holder comes with a case cover for keeping the battery in place Attention: Do not mix the good battery and poor battery to use. The internal resistance of 3 battery capacity are closer will be better. Premium quality, multiple color options. 1.materialABS 2.colorAs the pictures shown 3.sizeas the picture shows Package include:1pc Note: Please allow minor error due to manual measurement. The colors may be a little difference for the different monitor display.