#10 White Policy (Open End) Envelope， 4-1/8 X 9-1/2， 24lb， 500/box (SY410)<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"> Size 4 1/8" x 9 1/2 Catalog </span></li><li><span class="a-list-item"> Open End Envelope Style </span></li><li><span class="a-list-item"> 500 Envelopes per Box </span></li><li><span class="a-list-item"> Plain Envelope to fit any purpose </span></li><li><span class="a-list-item"> Gummed Flap </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/21MCWeLyk7L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/21GWOnDQpIL.jpg" noproxy>