First Class Mail – 9″ Width x 12″ Length – Self-sealing – White – 100 / Box

9″ x 12″ Ship-Lite First Class Mail Catalog Envelopes feature a self-seal closure for convenient mailing. Reinforced, multilayered material is more durable than traditional paper for superior protection. Lightweight design can help you save on postage and shipping costs. Moisture-resistant construction preserves contents from rain and spills. Redi-Strip closure creates a secure seal. Simply peel off the strip and press for an immediate bond. First-class mail borders on the front and back provide a look of importance to help stand out from other mailings. Ship-Lite envelopes give you assurance that your documents or items arrive safely intact.