Mailing supplies are essential items used to send letters, packages, and other materials through the postal system. Common supplies include envelopes, boxes, tape, and labels. These items help protect the contents during transit and ensure they reach their destination safely. In addition to basic supplies, there are specialized items like bubble wrap for cushioning fragile items and shipping labels for easy identification. Many businesses and individuals rely on these supplies to facilitate communication and shipping, making them a vital part of everyday logistics.