Poly mailer 14.5 x 19

A poly mailer!

A poly mailer is a type of packaging material made from polyethylene or polypropylene plastic. It's a popular choice for shipping small to medium-sized items because it's lightweight, flexible, and provides good protection against moisture and dust.

The dimensions you mentioned, 14.5 x 19 inches, are a common size for a poly mailer. Here are some general characteristics of a poly mailer with these dimensions:

Keep in mind that these are general characteristics, and the specific features and performance of a poly mailer may vary depending on the manufacturer and the specific product.