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These Flower Postal Boxes measure 590mm x 175mm x 30mm and are perfect for efficiently and securely sending flowers and other long, lightweight items. These postal boxes are quick and easy to assemble whilst helping to reduce postage costs by fitting within Royal Mail's sizing guidelines. Simply use the peel-and-seal strip to secure your items inside without the need for any packing tape and provide your customers with an extremely simple opening experience thanks to the easy ripper strip. Supplied flat-packed in bundles of 40 for optimal storage, these flower postal boxes are also 100% plastic-free, recyclable, and biodegradable, making them an excellent eco-friendly choice for your business.