Tagging guns are used to tag soft goods with a needle and fasteners (barbs). Taggers are available in two basic types - Standard and Fine. Standard tools use standard needles and fasteners and are used marking items such as towels, pillows, stuffed animals. Fine tools use fine needles and fine fasteners and are used for tagging anything t-shirt thickness or finer. Extra thick or heavy items, or applications where an extra long needle is needed, heavy duty needles or extra long needles that fit into standard tagging guns are available. All brands of standard fasteners are interchangeable with other taggers as all brands of fine fasteners may be used with any fine tagging gun. Needles may not be interchangeable.