This is a holder that makes it easy to replace the batteries in Game Boy, Game Boy Color, Advance, WonderSwan, and Game Gear cartridges, etc. Once installed, all you have to do is buy commercially available batteries and replace them! You no longer need to prepare batteries with tabs and solder every time, so please consider it! * Some cartridges may require some ingenuity. ■ Product Description Specifications: CR1616 battery holder Quantity: 20 pieces * Third-party product ■ Photo 1 View from above The left side is the positive terminal, and the right side is the negative terminal. ■ Photo 2 View from the back ----- * If you wish to purchase multiple sets, you will receive a 100 yen discount for each set after the second set. Please comment with the number of sets you want. No individual sales or price reductions. ----- * We will not use simple packaging to prevent damage. We will ship with careful packaging, so please rest assured. #GameBoy #GameBoyColor #GameBoyAdvance #Advance #WonderSwan #GameGear #GB #GBC #GBA #Software #BatteryReplacement #Battery #Replacement #CR1616 #CR #1616 #Socket