2 Piece Set: 3.8mm + 4.5mm Security Screwdriver to Open SNES Super NES Games 8 Bit Original NES Games for 64 Games Game Boy Original Game Boy Games - Color Games, Virtual Boy Games, Sega Genesis games, Sega Master system games, and Game Gear video game cartridges. The 3.8mm security screwdriver opens 8-bit NES, 16-bit SNES, N64, Game Boy, and Sega Genesis cartridges. The 4.5 mm security screwdriver is used to open the consoles; Opens perfectly for , N64 and for CONSOLES Extra-long Gamebit shaft makes it easy to remove screws from system consoles and game cartridges Security screwdriver size 4 .5mm ALSO opens snes-101 SNES console and NES Top Loader console. 3.8mm security screwdriver ALSO opens Sega Master System, Sega Game Gear and Game Boy Color games These hollow security games also open the following GAME CONSOLE SYSTEMS: SNES console 16 bit, for 64 (N64) Console, for console, original NES Toploader console and Snes console / Snes 101 console.