Props are not always used in a yoga class. Most of the time, experienced yogis rely on their own sense of balance and muscle memory to achieve the asanas assigned by the instructor throughout class. If you are new to yoga, or recovering from an injury, you may find the use of props helpful.
Props can serve two main purposes: they help you strike poses by affording better balance, and they may help you stretch your muscles in new ways. Your yoga class may offer props for use, or you can bring your own to class.
Some of the more commonly used props in traditional yoga classes are: