Pinit Multi-Depth Mailer. 12 x 18" (inside). Variable Depths 1/2", 1", 1-1/2", 2". Use for larger, thicker books up to 2". SKU: MMD1218 (0)No Reviews yet Add to Shopping Cart Details Multi-Depth Mailer 12 x 18" inside dimensions. Variable Depths at 1/2", 1", 1-1/2" and 2". Use for mailing larger / thicker books or multiples of simi... Details Back DetailsMulti-Depth Mailer 12 x 18" inside dimensions. Variable Depths at 1/2", 1", 1-1/2" and 2".Use for mailing larger / thicker books or multiples of similar-sized items.Made from 200-lb-test corrugated cardboard. Reviews 0 Back Ratings & ReviewsNo reviews availableBe the first to Write a Review