Get Custom Printed Mailer Boxes in different sizes and shapes from Claws Custom Boxes. We are offering our customers fully customized printed boxes. Mailer boxes are the best choice for e-commerce companies. They are boxes made out of paperboard and are designed into interlocking flaps that fit into each other and provide a secure closure. These types of boxes usually do not require any tape or additional seal to prevent any harm to the enclosed product, rather they provide support to it and full protection. These are ideal for packaging goods such as books, gadgets, appliances, etc., and are also used for packaging digital goods, as well as services such as tickets, etc. this demonstrates their wide usage among e-commerce companies. Like all other custom boxes, these boxes can be decorated and made with as much creativity as possible.