Use Corrugated Mailers for an extra level of protection. Made of 175# test B-flute white corrugate, these super strong boxes have sides and flaps that tuck together to form a reinforced barrier to prevent damage to contents when mailing. In addition to their functional use, white mailers make an attractive presentation of your products. All Argrov Box mailers are shipped flat in boxes to keep them clean and damage free. Select from over 150 sizes. Bundle Count: 50 except where noted.