Feel confident now to run a business with great quality mailers, that help save cost in labor with the easy Self peel, light mailer to help save shipping cost, Flexibility to save employees times, with Confidence that your product will arrive to your destination, Safely. Product was tested for over 1 year with a company shipping over 2500 orders a day with 0 negative feedback. Worked perfectly with UPS, FedEx, USPS, Newgistics, and DHL. Why pay more for the same bag and extra weight? With iMBAPrice offering a big selection of 6x9, 7.5x10.5, 9x12, 10x13, look no further!