These extra strong bubble envelopes offer the ideal postal solution for A4 size items. They are burstproof and really strong so are especially suitable for posting manuals or thick booklets. Measuring 240 x 330mm, these Mail Lite bubble wrap envelopes have the bonus of still being in Royal Mail's cost-effective large letter category. Whilst being economical, our bubble mailing envelopes are puncture-proof with an oyster Kraft write-on surface that you can also easily stick labels on as required. The bubblewrap lining on the inside provides cushioning for the contents, and the envelopes have an easy but secure self-seal closure. Available in packs of 50.
240 x 330mm