I received the SP-102 Metal match today. They are all packed in small sealed plastic bags, some with OD cord and some with a small dogtag type chain. There are instructions attached via the cord or chain. With the exception of the top most 1/2 inch it is covered by some type of plastic that looks like the metal match was dunked in it. I would think that this protects the striking surface. The ones with the cord are protected, the ones with the chain are NOT. Other than that they are the same. Countycomm also now has the USGI type small folding" Prep Razors" that are found in military FAk's and survival kits. These are $1.50 each. I'm at work, so I don't have a good place to test the sparking. There is no choise as to with cord or chain, I ordered 5 and got 3 with cord and 2 with the chain.