<p><b>Specifications:</b><br>Color: Black<br>Weight: 800g / 1.7lb<br>Dimension: 46*40*12cm / 18.1"×15.7"×4.7"<br>Core Material: Memory Foam<br>Cover Material: 3D Mesh breathable fabric<br><br><b>Why do you need a Back Support Cushion ?</b><br><b>Feature:</b><br>Relieve sciatica pain.<br>Promote good posture and proper spine alignment.<br>Promote blood circulation.<br>Relieve muscle tension. <br><br><b>Effective back pain reliefs</b><br>If you are sitting in a chair most of the time, and leaving work each day with an achy back and restless legs. In this case, you need a sanlinkee back support cusion. Adding this lumbar support pillow to your chair can provide your back with the support you need to maintain good posture, proper circulation, and prevent muscle fatigue.<br><br><b>Application Fields</b><br>This seat pillow is suitable for people who struggle with lumbar pain, tingling, discomfort and other issues related to a bad chair or poorly designed workspace. Lumbar back rest is convenient for office chair, driving car, wheelchair, any home chair or seat on airplane or train. And backrest pads is suitable for drivers, teachers, students, pregnant women, office workers etc.</p>