White Royal Mail Large Letter Boxes are specifically designed to meet the requirements and guidelines set by the Royal Mail postal service in the United Kingdom. These boxes are suitable for sending large letters and documents within the specified dimensions and weight limits of the Royal Mail's large letter category. The white colour of the boxes provides a clean and professional appearance, making them suitable for both personal and business use. These boxes are sturdy and durable, ensuring that your items are well-protected during transit. If you are looking to send large letters through the Royal Mail service, these White Royal Mail Large Letter Boxes are an ideal choice for secure and efficient packaging.