What's the difference between the FREEKey Basic and the FREEKey System. The FREEKey System allows you to organize your keys with three additional small rings. The FREEKey is simple to use by squeezing the ring and sliding the small rings or keys on. Sorry, the smaller rings still require you to open them the old fashion way. The FREEKey System and Basic both come from Exotac and make excellent gifts for new graduates.