324 x 229 x 38mm Peel & Seal Securitex Gusset Envelope 100 pack
Plus Fabric C4 Gusset Envelopes, 25mm Gusset, Peel & Seal, White, Pack of 100 | Paperstone
C4 Storm Grey Gusset Envelopes to Fit A4 | Grey Expanding Envelopes | All Colour Envelopes
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Vita EcoCushion Padded Gusset Envelope White 140gm E4 400x280x50mm EPE4 [Box 100]
457x324x30 White Gusset Envelope P/S 140gsm Opaque
Q Connect Gusset Envelope 305 x 254 x 25mm / 12 x 10 x 1 Inch Manilla
Tyvek B4A Gusset Envelope, 330 x 250 x 38mm, Pack of 100 - TY02269 | Now on Staples
New Guardian Armour Gusset Envelopes, 380x280mm, 50mm Gusset, Peel & Seal, Manilla, Pack of 100 | Paperstone
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Q-Connect B4 Padded Gusset Envelopes 353x250mm White Pack of 100 - Hunt Office UK
Blake Packaging Eco Cushion Padded Gusset Envelope C4 140gsm Peel and Seal Pack of 100
Reinforced Gusset Envelope B4 Size (Larger than A4) 4 cm Gusset Peel and Seal Pack of 25 250 x 353 x 40 cm : Amazon.co.uk: Stationery & Office Supplies