Diameter: Approx. 21mm
Suitable for AAA battery, can be hold 3 x AAA bateries
With resilient metal column, it can be bounced to most fit the devices
This battery holder can be used in the flashlights which use 1 x 18650 battery
(Not all the flashlight is compatible, please check the size before buy )
3 x 3 AAA Battery Holder (not included the battery)
you can track your packages after an order has shipped.