I have a collectibles booth in an indoor flea market. From time to time I have sales, and need to mark my merchandise prices down. Since we are allowed to use the same tags, it is to my benefit (in order to prevent fraud) to use a pen in a color that the average shopper would not be carrying. So I chose this terrific pack of Limited Edition Sharpie Permanent Markers in very unique colors. It is a 5 pack of pens, and the colors are rain shower, clover, pumpkin, rose, and violet.
Permanent Markers ensure that the tags cannot be easily altered, and the rare colors also help to prevent tampering. In a flea market situation, there is always a chance of unscrupulous activities, so it's best to try and protect yourself wherever possible.
These markers have a fine point, which makes writing on a small tag a great deal easier. They are quick drying, as well as fade and water resistant, which also helps. Sharpie guarantees that if your pen does not work properly, you can simply return it for a replacement, and that's a deal that's hard to beat.