Place it between your knees to elevate your top leg and align your spine, relieving back and lower limb pressure. Inflate it to your desired firmness for maximum comfort. Easily deflates and fits into buttoned clear pouch for storage and travel. Folds flat and tucks conveniently into your pocket, purse, briefcase or luggage. Soft, flocked surface keeps it from slipping out of position. Hand wash, air dry. Inflated size is approximately 9 in. x 5.5 in. x 6.5 in. Deflated size (in pouch) is 6 in. x 5 in. x 1 in. Dark blue.