Nitecore Battery Magazine NBM40
- Holds up to 4x 18650 batteries
- Constructed from environmentally friendly vapor-phase gum
- Extreme resilience, tear and rupture proof
- Can handle up to 40 lbs of weight
its a great item, definitely protects and insulates the batteries. but i can purchase a few plastic cases to hold my 18650 batteries too, and they are cheaper than this holder. if you have the budget, for sure get it. however, if you are on a budget, pass on this item - its not necessary.