This box holder is easy installation and taking， perfectly designed for AA battery with 8 series items. 

Feature: 
Perfect box holder for AA battery， with cover， DC plug and switch. 
Easy to form your own power supply system. 
DIY power supply with 8×AA series batteries. 
Easy installation and taking. 
High quality and durable in performance. 

Specifications: 
Battery Type: AA 
Connection: Series 
Color: Black 
Item Size: 12.5 * 7.2 * 2cm 
Item Weight: 75g 

Package information: 
Package Size: 12.5 * 10 * 7.2cm / 4.93 * 3.94 * 2.84in 
Package Weight: 375g / 12.23oz 

Package list: 
5 * 8×AA series battery holder