The Original McKenzie® Self-Inflating AirBack Lumbar Support by OPTP (710)<div style="text-align: left;"><strong>[Product Information]</strong><ul><li class="showHiddenFeatureBullets"><span class="a-list-item"> Self-inflating lumbar roll for back support </span></li><li class="showHiddenFeatureBullets"><span class="a-list-item"> Twist valve to inflate to the desired level in a matter of seconds </span></li><li class="showHiddenFeatureBullets"><span class="a-list-item"> Small， portable size for travel </span></li><li class="showHiddenFeatureBullets"><span class="a-list-item"> Ideal for sports stadiums， bleachers， car， plane， etc. </span></li><li class="showHiddenFeatureBullets"><span class="a-list-item"> Measures 16"L x 2"D x 8"H when fully inflated; 8" L x 3" dia. when deflated </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/31EOHuhCaIL.jpg" noproxy>