9 1/2 x 14 1/2 - #4 Reinforced Mailer 500/Case Discount_5933550108762_10 Constructed from 275#/ECT-44 kraft corrugated

Constructed from 275#/ECT-44 kraft corrugated

Lids can be fastened and locked for added security

Adjustable protectors are pre-scored to fit frames two different ways from 1/2" to 1 3/8" deep

books and catalogs

Reinforced side walls and wide ledge allow high stacking

9 1/2 x 14 1/2 - #4 Reinforced Mailer 500/Case Discount_5933550108762_10 Constructed from 275#/ECT-44 kraft corrugatedThese envelopes are constructed from laminated fiberglass strands between kraft paper layers which adds extra tensile strength and superior protection against grease, water, and oil damage. The laminated fiberglass reinforcements protect the bags against tearing, puncturing, and abrasion. Being unpadded, these reinforced bags cost less to mail. Secure enclosure for mailing items that don't require cushioning.