Feature: 100% new and high quality Convert any AA battery to a D battery Max convert 3pcs AA battery to D size battery Perfect for electronics and emergency situations A gadget to keep close at hand, at home, at the office, etc Firmly connected Option to use 1 AA, 2 AA or use 3 AA for more capacity Specification: Type:Battery Storage Box Product: Battery Adapter Converter Case Use For: 3pc AA to D Size Cell Material: Plastic Color: White Size: 5.6x 3.2cm(2.20'*1.30') Package includes:1pc (Batteries not include) Note: The size is just for reference, there maybe exist a measurement error, please check carefully before you buy it. Color may vary slightly due to different calibration of each monitor.