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Our M2 Amazon-Style Expandable Envelopes measure 250 x 165 x 70mm and mirror the cardboard envelopes commonly delivered by Amazon, simply with a plain outer print design. These adaptable corrugated cardboard envelopes have been created using sustainable materials, providing ample expandable room to safeguard a range of items including books and electronics during shipping. Effortlessly utilised and environmentally mindful, they present a dependable option for businesses aiming to reduce their ecological impact while maintaining top-notch quality and convenience.