HOW TO USEFully insert and remove the console cleaner several times. (Do not use with liquid or store in the console.)SYSTEM COMPATIBILITYIt is compatible with Game Boy Game Boy Color and Game Boy Advance including Game Boy Advance SP. It is not compatible with Game Boy Micro Nintendo DS.HOW MANY TIMES IT CAN BE USEDThe console cleaner can be used over and over. The best practice is to clean it after use using a 1UPcard Mini. Moisten the 1UPcard with WATER only. (Do not use solvents including isopropyl (rubbing) Beverage on your Game Boy console cleaner. Solvents will cause premature wear.) Using the 1UPcard on the cleaning material will help remove grime and extend the life of the console cleaner but it wont get rid of all of it. Even though there is still visible corrosion on the cleaner it will continue to clean and buff the pin connector. HOW IT WORKSThe Console Cleaner uses a micro-abrasive material. It will remove corrosion from the contacts but not any metal. ADDITIONAL INFO A clean console is just as important as clean games. If your Pin Connector located inside your Game Boy is dirty grimy or corroded use this before inserting games. This Game Boy console cleaner is brand new made from all new parts. Cleans and polishes the connectors on your Game Boy Compatible with Game Boy Game Boy Color Super Game Boy Game Boy Player and Evercade VS video game systems. Assembled in the USA from domestic and foreign components. DID YOU KNOW We are an American company and we love retrogaming.