Schott Packaging 50x White A6 Mailing Box - C6 Large Letter Postal Shipping Mailing Box - 112mm x 163mm x 20mm - Ideal for Mailing Shipping Postage Office Small Business Royal Mail - 50 Pack

Perfect size for my requirements, arrived fast and we'll packed, though they were wrapped in plastic. Would have preferred a more eco friendly method.

So strong easy to put together

Perfect - exactly what I was looking for. Just ordered 4 more packs after receiving my first pack a few minutes ago.

These were great very sturdy