Product Specifications:

Portable Lumbar Support: Ease back pain with this self-inflating compact travel pillow; Ideal for the car, air travel, at sporting events, and anywhere you need added lumbar support.
Perfect for Travel: Ideal for use as an airplane lumbar support; conveniently take this small, inflatable back support anywhere you go. When deflated, the AirBack easily fits into a purse or small bag.
Personalized Comfort: Twist the valve on this inflatable lumbar support to inflate to the desired level in a matter of seconds. For a firmer feel, gently blow into the open valve and close it at the desired level of firmness.
McKenzie Method Approved: Unlike other adjustable lumbar support pillows, the Original McKenzie Self-Inflating AirBack was approved by Physical Therapist Robin McKenzie, author of the worldwide bestselling book Treat Your Own Back.
Back Support Pillow, Small: Measures 16" long x 2" deep x 8" high when fully inflated; 8" long x 3" diameter when deflated. Wash cover surface with wet cloth and solution of warm water and mild soap. Rinse with clean water. Air dry completely.

OPTP The Original McKenzie Self-Inflating AirBack Travel Lumbar Support