Our custom promotional boxes come in rectangular and squared shapes for easy branding. Choose front-lock or easy-fold mailer box designs for quick assembly. Options include tuck flap, ear lock, and tuck top cartons. One-piece folder styles offer simple, functional structure for everyday use.These promotional mailer boxes feature auto lock closures for secure, tidy packaging. Well boxes include a zip-strip opening with collapsible sides for easy delivery. All boxes are flat shipped, saving space during storage and transport. This range of shapes and closures supports flexible, practical promotional packaging.