These instruments come in a standard 6 1/2 inch length, which works well for most adult neck procedures, and you can choose between versions with 2, 3, or 4 prongs depending on how much tissue you need to hold back. The two-prong option gives you focused exposure for smaller areas, the three-prong offers balanced retraction for typical cases, and the four-prong model provides maximum spread when you're working with wider surgical fields.