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While most of us do a pretty decent job of posting stuff in this forum, let's take a quick look at some common sense key points about posting an item for sale or trade - AND purchasing an item as well:
1) A good description (new, used, etc)
2) Brand / Make / Manufacturer (the more info the better)
3) Size (shoe size, CP size, leg guard size), you get the drift 😉
4) A picture says a thousand words
5) Honor your transactions!  Once an item is paid for, please