With dimensions of 610x108x108mm, these Square Postal Tubes from ColomPac provide rigid and robust protection for your important documents, protecting against folds, tears and creases. Offering lower postage costs in comparison with typical round postal tubes due to easy stacking and handling without rolling, these postal tubes are a secure packaging option. These tubes are quick and easy to assemble and seal with the integrated self-seal adhesive strips and are supplied flat to save space in your packing environment. Features include: Supplied flat Self-seal adhesive strips – no need for additional adhesives or packing tape Tear open strip FSC Certified and Climate Neutral Recycled, recyclable and biodegradable