YogaAccessories Pranayama Cotton Yoga Bolster cotton RESTORATIVE BREATHING EXERCISES - Smaller than normal bolsters, Pranayama Pillows are used during breathing exercises; often laid under the spine to help open up the chest for deeper breathes. FIRM SUPPORT- Quickly remove the inner cotton batting to reach your desired fill level and hit every pose without worrying about unwanted bending or sagging. 100% COTTON - YogaAccessories bolsters are not filled with synthetic foam, just a fluffy cotton filling. When needed remove the cotton cover and throw it in the washing machine. BEAUTIFUL TEXTILES - Choose from our popular array of colored pranayama bolsters that feature handles on either side for transporting to and from the studio or gym. PRANAYAMA BOLSTERS - Measures 25" long x 6" wide x 3" high, significantly smaller than standard rectangular bolsters.