Quality Park Catalog Envelopes， 10 x 13 Inches， Box of 100， White (R4500)<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"> 10 x 13 x 1.5 inches 100 ct. Lightweight Tyvek Open End Expansion Envelopes </span></li><li><span class="a-list-item"> Tyvek is strong and moisture resistant. </span></li><li><span class="a-list-item"> Convenient Flap-Stik closure requires no moisture to seal. </span></li><li><span class="a-list-item"> Superior protection for mailing bulky items. Ideal replacement for box or carton. </span></li><li><span class="a-list-item"> 10 x 13 x 1.5 inches 100 ct. Lightweight Tyvek Open End Expansion Envelopes </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/31wyCy0llNL.jpg" noproxy>