B4 cello bag (240 x 330mm) - sample
B4 there was Resealable Cello Bags, Australia
This 24 x 33cm (+3cm flap with sealing strip) cellophane bag fits a pile of A4 sheets around 15mm in thickness which would then fit into a B4 envelope.
B4 envelopes measure 250 x 353mm and are pretty much the biggest size Australia Post will accept as a large letter. (Officially it's 260 x 360mm, the contents must not be thicker than 20mm and the weight limit is 500g, otherwise, it is classed as a parcel. Sorry. Went off on a tangent there. We've been posting out our cello bags via Australia Post for about 10 years now so we kinda know this stuff! At least there's a career path should we ever need it. OK, I'll stop now.)
Our beautifully clear, 40 micron B4 cellophane bags are the best choice when you want to package A4 photographs, artwork, posters, paperwork, important documents and the like. And packaging is made simple with the self-seal adhesive closure.
No sample required? Buy B4 cello bags now.
I appreciate that you offer samples and they were very helpful in selecting the optional size for my project