All bolsters are NOT alike. There are round bolsters and rectangular bolsters. Some are soft, some are hard or stiff. So how do you decide what is the right bolster for you?
A bolster is used for a variety of poses. It helps to separate your pelvis and chest for more space in supine posses like bhadokonasana or supta virasana, provides a lift for your pelvis in viparrita karani, supports behind your knees in