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Tyvek B4a Gusseted Envelopes Extra Capacity Strong 330x250x38mm White
Tyvek B4a Gusseted Envelopes Extra Capacity Strong 330x250x38mm White: Extra capacity, ideal for mailing really bulky and awkward shaped mail. Ideal for the occasional user. B4A size...

Tyvek C4 Gusseted Envelopes Extra Capacity Strong 324x229x38mm White 1
Tyvek C4 Gusseted Envelopes Extra Capacity Strong 324x229x38mm White 1: Extra capacity, ideal for mailing really bulky and awkward shaped mail. Amazingly light, water resistant, tear...

Tyvek C4 Gusseted Envelopes Extra Capacity Strong 324x229x38mm White 1
Tyvek C4 Gusseted Envelopes Extra Capacity Strong 324x229x38mm White 1: Extra capacity, ideal for mailing really bulky and awkward shaped mail. Amazingly light, water resistant, tear...

Tyvek E4 Gusseted Envelopes Extra Capacity Strong 406x305x50mm White 1
Tyvek E4 Gusseted Envelopes Extra Capacity Strong 406x305x50mm White 1: Extra capacity, ideal for mailing really bulky and awkward shaped mail. Size E4 406x305mm. Gusset size 50mm. Packed 20....

Tyvek E4 Gusseted Envelopes Extra Capacity Strong 406x305x50mm White 1
Tyvek E4 Gusseted Envelopes Extra Capacity Strong 406x305x50mm White 1: Extra capacity, ideal for mailing really bulky and awkward shaped mail. Size E4 406x305mm. Gusset size 50mm. Packed...

Tyvek D4a Gusseted Envelopes High Capacity Strong 381x250x51mm White 1
Tyvek D4a Gusseted Envelopes High Capacity Strong 381x250x51mm White 1: Extra capacity, ideal for mailing really bulky and awkward shaped mail. Size D4A 381x250mm. Gusset size 51mm. Packed...

Tyvek D4a Gusseted Envelopes High Capacity Strong 381x250x51mm White 1
Tyvek D4a Gusseted Envelopes High Capacity Strong 381x250x51mm White 1: Extra capacity, ideal for mailing really bulky and awkward shaped mail. Size D4A 381x250mm. Gusset size 51mm. Packed...