For easy access and remove all the dirt oxidation and corrosion that causes your games to not work,and a higher quality slimmer 3.8mm game cartridge opening bit! Cleans safely and gently without damaging games but VERY effectively! INCLUDES CLEANING LIQUID,CLEANING SWAB, & CLEANING CARTRIDGE TO GET YOUR SYSTEM RUNNING LIKE NEW!!ESPECIALLY >> IF YOU RENT A LOT OF GAMES, IT"S A MUST TO CLEAN YOUR SYSTEM AT LEAST 2X"S A MONTH TO KEEP IT RUNNING LIKE NEW, A LOT OF DIFFERENT CUSTOMER"S RENT THE SAME GAMES AS YOU WOULD RENT AND MOST LIKELY THEY ARE NOT CLEANING THEIR SYSTEMS SO ALL THE DIRT & GRIME LEFTED ON THE RENTED GAME YOU ARE PUTTING INTO YOUR SYSTEM!!(JUST A REMINDER)