Thank you for coming to our shop, I hope it is to your satisfactionCategory: Power Bank Case KitMaterial: AluminumInput: DC 5VOutput: DC 5VSupport Battery: 1 x 18650 Battery (Not Contains)Peculiarity: Portable, Battery Charger, Easy to Use, CylinderDiameter: 2cmHeight: 9cmInstructions:Directly place the 18650 battery in it, easy to use.The shell is detachable, you can replace the battery easily.Can also be used as a battery charger.Small size and compact, easy to carry.Kindly Remind:Due to light and display, there may be slight differences between the picture and the actual color of the product.The color is subject to the goods received.In addition, please allow slight size difference due to manual measurement.High quality, assured choice is guaranteed!Package Contains:1 x Power Bank Case Kit (Battery Not Contains)