Use this set of 25 red corrugated cardboard boxes with thank you stickers for shipping and packaging clothing, pictures, art prints, and cosmetics to your customers. Each cardboard mailer measures 4 x 4 x 2 inches, the thick and rigid paper construction will ensure contents remain inside while in the mail. The red small shipping boxes can be customized with business logos, stickers, and stamps to help your small business packaging stand out from competitors!