18650 lithium batteries spacer plastic batteries pack mounting tool Suitable for DIY import battery combination, the unique design, and smart solid frame can be an excellent protector for your lithium-ion battery. 

Application: With a professional battery holder to replace the traditional general adhesive, which is not good for its kind of batteries, this spacer will make battery maintenance more convenient. It is the best choice for any battery pack.

Specifications:
Name 18650 battery spacer and pack maker.
Material: ABS.
Color: black.
Installation: top and bottom to work.