Poly Mailers - 2 Mil - 14.5" x 19" - 500 Pieces = 1 Cases. Poly Mailing Envelopes are perfect for shipping small items to individuals with ease. Durable, poly mailers resist dust, dirt, and moisture—keeping materials clean and organized until opened further. Not to mention, white mailing envelopes help me... - Poly Mailers - 2 Mil - 14.5" x 19" - 500 Pieces = 1 Cases.
