Winado - 100 6x4x4 Cardboard Boxes Mailing Packing Shipping Corrugated Cartons for USPS FedEx Packing Mailing Shipping Storage - Yellow

The paper box were easy to assemble and the boxes were sturdy enough for your usage. The boxes are fairly thin on their own, these work fine as long as you put padding inside boxes. Sturdy and easy to use, great size for shipping items,and easy to put together boxes. So don't hesitate, it's a good choice for you!