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
New Guardian C4 Window Envelopes Pocket Manilla Heavyweight Peel and Seal Pack 250 - Hunt Office UK
BROWN ENVELOPES C4 C5 A4 A5 MAILING MANILLA PLAIN (NO WINDOW) SELF SEAL OFFICE | eBay
l Hardback Envelopes l C4 l 324x229 mm l Manilla
Gold Metallic Peel & Seal Envelope. 324mm x 229mm. 130gsm. Shiny Gold C4 Envelope (to fit A4).
Solid Board Envelopes 334mm x 234mm A4 - Europa Industries
Egg Yellow C4/A4 Peel/Seal 324 x 229mm Coloured Envelope
Staples Plain White C4 Envelopes Self Seal 90gsm (Pack of 250) - WX3499
C4 Pink Envelopes To Fit A4 | Cerise Pink | Flamingo Pink | All Colour Envelopes