The boxes arrived promptly on `one-day' delivery and were secure and protected.
Once we'd unpacked them and put the first box together, however, it was quickly obvious that they had very little rigidity or strength. These boxes might be suitable for lightweight stuff: cushions, duvet, soft toys and the like - but they are useless for anything heavier like plates, cups, CDs, DVDs, books, cables, ornaments etc.
We then bought a different pack of boxes from Amazon and were very pleased with them - Ambassador Packing Carton Double Wall Strong Flat-packed 457x305x305mm Ref SC-64 [Pack of 15]. They were exactly what we wanted and are much better than this product.
I can't recommend this product and would suggest you may want to look at something stronger in its construction.