This is AA to C Size Battery Converter Adapter Case. It is made of high quality and durable material for long time use. Good choice for you.                                    Features            New and high qualityConverted AA size battery to C size batteryNothing complicated， just stick the AA battery in the converter and it′s the same as a C batteryPerfect for electronics and emergency situationsDimensions: (5 x 2.4)cm / 1.96" x 0.94" (L x Dia)                                                                                                Package Includes            1 x AA to C Size Battery Converter Adapter Case                                                            Extra Info            CompatibilityAll types of AA batteries