Kit inclueds Y1 tri-point screwdriver, 3.8mm and 4.5mm security game bit. Made of Cr-V steel with heat treated, durable for long time use. 3.0mm Y tip screwdriver is for Wii, NDS, NDSL, DS Lite, GBA, GameBoy Advance. 3.8mm bit is for 8-bit NES,16-bit SNES, N64, Game Boy, Sega Genesis Cartridges, Sega Master System, Sega Game Gear, And Game Boy Color Games. 4.5mm bit is for SNES, N64, Game Cube, and it also opens the snes-101 Mini SNES Console, NES Top Loader Console. 3.0mm Y1 Tri-point Screwdriver 3.8mm 4.5mm Security Bit Compatible with Nintendo NES SNES N64 Wii NDS Gameboy Sega Game Rear