With this self-sealing maling box, you can pack and send without the use of tape. The self seal box is a box alike envelope which can simply peel and seal. The box is made of quality corrugated cardboard with 2 sticky seals. It is double sided on the side walls (after folding) and seamless on the bottom and top. Youwill not have to pay higher prices for superior quality. Choose Boxmore and experience the difference of high-quality mailing boxes.