Provide internal protection. To properly cushion the contents of your package, wrap each item separately. Fragile articles need to be protected from each other and separated from the corners and sides of the box to prevent damage. Use enough cushioning material to ensure that the contents won't move easily when you shake the box. Close it securely.
Proper closure is just as important as adequate cushioning.
Water-activated paper tape. Use a good grade tape at least three inches wide. Apply three strips to both the top and bottom of the box. Water-activated reinforced tape. Similar to plain paper tape, except that reinforcing fibers have been added for strength.