Ideal for using in a busy office or post room where a mix of sizes is required. The retail favourite; a lightweight, economical mailer that gives you all the protection you need with the added benefit of reduced postal costs. Jiffy AirKraft has a fully laminated lining of Astro SupraBubble for extra strength and puncture resistance with a strong self-seal closure. Perfect for mailing items that are susceptible to impact during transit, ideal for fulfilment houses, mail order and contract packers.Consumer Delivery Expectation: Next working day