Specially shaped lumbar cushion fits between your back and the chair. Memory foam contours itself to your back for tailored lumbar support. A great way to remove strain and pressure from your lower back muscles caused by slouching. The cushion promotes ergonomic desk posture by encouraging you sit straighter. Take it with you to the office, use it at home, in your car, on planes, buses, and anywhere else you sit Bolstered sides help keep the wedge centered in your seat and your spine properly aligned. Use it as a seat cushion if you would like to cushion your chair. The attached elastic strap extends to 31 inches. GREAT FOR: Poor Posture Daily Fatigue Injuries Chronic Back Pain Arthritis Traveling and more Benefits of our lumbar support back cushion: -Excellent for improving your posture, alleviates lower back pain and can reduce stress to the back -The contoured shape design for this lumbar pillow ensures an anatomically correct posture for long term benefits -Finally enjoy your next long car ride and arrive feeling refreshed -Essential for computer operators, computer and console games players, anyone who drives, back pain sufferers, etc. DIMENSIONS: 14 inches tall by 13 inches wide with a depth of 5 inches.