PACKPAL is stationery that can be repeatedly sealing the box, made of thin aluminum sheet, can use repeatedly bent and recycled, reducing the use of plastic sealing box tape, and extending the repeated service life of cartons, and improve the convenience of users to take items from cartons many times. PACKPAL has a 90-degree bendable sign, can be written, bar code, and special electronic paper display, to assist users to do carton content marking and classification, as a need for multiple items storage management.PACKPAL's eco-friendly 3R, Reduce, Reuse, Recycle as the core of the creation of friendly environment stationery.Target group locked in temporary storage, office storage, store storage, home use, moving house, etc., the need for rapid replenishment or rapid unsealing of the application field.