HOW TO USEFully insert and remove the console cleaner several times. (Do not use with liquid or store in the console.)SYSTEM COMPATIBILITYThis unit is compatible with NES Retro-Bit Retron etc.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. Moisten the 1UPcard with WATER only. (Do not use solvents including isopropyl (rubbing) beverage on your 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 console is dirty grimy or corroded use this before inserting games. This console cleaner is brand new made from all new parts. Assembled in the USA from domestic and foreign components. DID YOU KNOW We are an American company and we love retrogaming!