The Packaging Wholesalers 3 x 3 x 18-Inch Square Tube ， 50-Count (BSM3318)<div style="text-align: left;"><strong>[Product Information]</strong><ul><li id="replacementPartsFitmentBullet" class="aok-hidden" data-doesntfitmessage="We're not sure this item fits your " data-fitsmessage="This fits your "><span class="a-list-item"><span id="replacementPartsFitmentBulletInner"><a href="#" class="a-link-normal hsx-rpp-fitment-focus">Enter your model number</a>to make sure this fits.</span></span></li><li><span class="a-list-item"> Square tubes will not roll on conveyors like conventional round tubes. </span></li><li><span class="a-list-item"> Constructed from 32ect-B oyster white corrugated. </span></li><li><span class="a-list-item"> Locking tabs - no tape needed! </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41ep1ruLOsL.jpg" noproxy>