Description: Package IncludedThis set includes 2 battery converters, guaranteeing the reliable operation of film camera exposure meter.MaterialMade from metal material, these adapters ensure strength, wear resistance, and does not change voltage.DesignCompact and lightweight, these adapters do not add extra weight to film camera, ensuring smooth operation without sacrificing portability.Easy InstallationConveniently sized with accurate threads for stable installation, providing seamless connection and fitting for film camera.CompatibleThis battery adapter is easily replace LR44 or 1.4V zinc air battery instead of 1.35V battery MR9, PX625 and PX13 in film camera. (If the bottom is flat, the air battery's blowhole is easily blocked.) Specification: Material: Metal Size Chart: Package Size: 5cmx5cm/1.97inchx1.97inch Package Includes: 2 Battery Adapter Converter Note: Please allow slightly errors 1-2cm differences due to manual measurement.