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PJ3 Poly Mailers are 250mm x 310mm making them larger than A4 and a versatile size for sending all kinds of small clothing items. Made from 75% recycled material, this 75 micron polythene mailing bag meets the highest industry standards. Offering effective protection against water damage, tears and punctures, this mailing bag will ensure that your items arrive in great condition. Each bag has robust heat sealed edges and is fitted with a high tack adhesive strip to form a secure, tamper evident seal, keeping your items safe and secure. Incredibly strong yet extremely lightweight, these poly mailers keep your postage costs to a minimum.