The Goulet Grip is the handiest 1"x3" slip of rubber that you'll ever come across, perfect for removing those tough-to-grip pen parts such as nibs and feeds. This simple tool helps you get every part of your pen disassembled for cleaning or repair. It's also great for you tinkerers who want to know your pens inside and out!
A word of caution though, any time you take apart your pens you are doing so at your own risk. Any damage you cause to your pens taking them apart or reassembling is outside of just about all manufacturers' warranty policies, so make sure you're careful and well-studied before attempting to do any pen repair or disassembly yourself!