Features and Benefits: * Low profile SAE hex set sizes: 1/4” to 13/16” * The connection of wrenches (straight, halfmoon, stubby, box end, open end, socket wrench, etc.) to each other no matter how long, short or offset they may be * Molded in magnets assure hold * Will connect sockets to wrenches no matter how deep or shallow they may be * Connects any socket to wrenches with or without the use of extensions Will work with crows feet wrenches (line style or open end).