Stephjc.zip -

: Use clear or brown 2-inch wide packaging tape to reinforce all seams. Do not use string or twine, as they can get caught in sorting machines [2].

: If using a simplified address, pieces should be in bundles of 50 where possible [5]. Stephjc.zip

For large-scale "post" preparation, the USPS Postal Explorer outlines specific bundling rules: : Use clear or brown 2-inch wide packaging

: Use a sturdy box; avoid reusing old mailing boxes as they weaken over time [2]. Stephjc.zip

: Use bubble wrap or crumpled paper. If the box rattles when shaken, add more padding to prevent shifting [2].