Features: Perfect for electronics and emergency-situations. A gadget to keep close at hand, at-home, in the-office, etc. Made of durable ABS plastic and metal accessories, this converter box is designed to keep your batteries organized and easily accessible. This product is perfect for anyone who uses AAAbatteries in their everyday devices and wants a convenient way to store and switch-them out. Whether you're at-home or on-the go, the AAAsame polarity-battery converter box can be used in a variety of settings, including in remote control, toy, flashlights, and more. The metal column in the positive can be bounced-to most fit the device. Application in most flashlight. Specifications: Material:Plastic+Metal Applicable battery: 3AAA (three 7th batteries) Size:Approx.2.15x6cm/0.84x2.36inch Net Weight:6.1g Package Includes: 1x Battery Convertor note: ①.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. ②.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings.