100Pack Brown Envelopes Self Seal 10×13 Large Brown Kraft Catalog Envelopes Kraft Manilla Envelopes 10×13:10×13 envelopes is made of ultra strength golden kraft paper that greatly support your business. Supper thick and super secure for privacy.Envelopes self seal: This large envelopes features with the peal and self seal closure that greatly improve business efficiency. Super strong adhesive strip is accross the clousure of the large envelopes that greatly ensure sercurity.This mailing envelopes 10×13 is perfect for mailing business materials, photos, multi-page documents, brochures, catalogs, etc.This yellow envelopes is with high quality kraft papaer for smooth writing experience with no smudging.Labelling and addressing never fades away during transporation.Size and Supply:Each unit contines 100 packs of 10X13 manilla envelopes.