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A3+ resealable cello bags for A3 artwork with mount board

320 x 440mm resealable cello bags (>A3)


A3 oversized cello bags are great for...

  • a number of A3 items
  • a thick A3 product
  • an A3 item with backing mount board
  • an A3 oversized item with a small frame

This is our larger than A3 cello bag. A3 is 297 x 420mm, so there is just over 20mm to accommodate the thickness of your A3 plus item/s. The flap with resealing strip is in addition to the 440mm length, so it will fold perfectly over your mounted artworks, prints, photographs, etc.

32 x 44cm (+ 3cm flap) archival quality, acid free cellophane bag in 40micron, crystal clear BOPP film.

The quality SEAL KING sealing strips are plain - no print after you tear away the liner.

This size does not accommodate what is commonly referred to as "A3+" or "A3 plus" items. Although not part of the ISO International Paper Standard (and therefore may vary slightly between manufacturers), "A3+" is usually around 329 x 483mm. The only resealable bag we have to fit "A3+" is our 410 x 570mm resealable cello bag. The 570mm length will fold over at 483mm but the excess in the width (81mm) would need to be folded over and stuck with tape for a snug fit.

Customer Reviews

Based on 3 reviews Write a review

Customer Reviews

Based on 26 reviews
Great Bags

Bags are great quality. I got the A3 plus size as I was using them for A3 fine art prints with a foam board, but there is so much extra space, I should have gone the normal A3 for a snug, professional fit. Can't fault the bags though :)

Excellent bag

Great quality. Lovely feel to it. Received my order quickly and well packaged.
Great presentation for art prints.


Great service and quality.

Perfect cello bags

Loved the cello bags!
Great choice of sizes and really good quality which makes our party supplies look fabulous.

Excellent product and fantastic service!

We always buy our cello bags from Resealable Cello Bags. The bags are fantastic quality and the range of sizes available means you can always find the exact cello bag product to suit your needs. After all, everything looks better in a cello bag ;)