Best Twin Ever - for twin brothers or sisters - siblings- Greeting Card， 6 x 6 inches， single (gc_151545_5)<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"> Dimensions (in inches): card 5.5 H x 5.5 W， envelope 6 H x 6 W </span></li><li><span class="a-list-item"> Heavy duty card stock with blank interior </span></li><li><span class="a-list-item"> Additional postage may be required </span></li><li><span class="a-list-item"> Cards are creased for Easy folding </span></li><li><span class="a-list-item"> Blank inside; envelope included </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41yiD24LMeL.jpg" noproxy>