The Soshine protective cases are designed for different batteries-- CR123A AA AAA. The 4 PCS set is able to hold CR123A、 AA and AAA. These plastic cases are good for preventing batteries from coming into messing with each other and also help organize your extra batteries. The water-resistant protective case is super light weight and convenient to use.<br /><br />-?Holds?CR123A AA AAA batteries<br />- Super Light Travel Weight<br />- Convenient and intuitive to use<br />- Water-resistant <br /> The Soshine protective cases are designed for different batteries-- CR123A AA AAA. The 4 PCS set is able to hold CR123A、 AA and AAA. These plastic cases are good for preventing batteries from coming into messing with each other and also help organize your extra batteries. The water-resistant protective case is super light weight and convenient to use.<br /><br />-?Holds?CR123A AA AAA batteries<br />- Super Light Travel Weight<br />- Convenient and intuitive to use<br />- Water-resistant                                                                                                                                 Dimensions: 0 in x 0 in x 0 in<br />Weight: 1.12 oz (all four)