Plastic 3xAAA Battery Adapter Tube 3pcs For 18650 Flashlight 100% brand new and high quality. The battery holder can hold 3 pcs AAA batteries. The metal column in the positive can be bounced to most fit the device. It converts 3 AAA battery to 18650 battery on function. Package included: 3pcs x Battery Holder for 3pcs AAA Batteries(Batteries not included)