457 x 324mm Board Back Envelope (A3 / C3)
These peel and seal board back envelopes are designed to protect A3-sized and smaller contents from bending, creasing and damage during posting. Suitable for mailing posters, prints and important documents. Each envelope features a clear red “Please Do Not Bend” caption to alert handlers to take extra care during delivery.
📐A3 Size: 457 x 324 mm (18.0” x 12.8”)
✨Board back design helps keep contents flat and protected in transit
🔒 Peel and seal closure for fast, secure and hassle-free packing
❗Red “Please Do Not Bend” warning clearly alerts handlers to take extra care
♻️ Recyclable material for a more environmental-friendly packaging choice
Regular Price
£4.70
Regular Price
Sale price
£4.70
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