Our smallest box is manufactured specifically for heavy items such as books and tinned foods. The general rule of thumb when it comes to packing boxes is that, the heavier the item, then the smaller the box.These boxes are single wall which is not recommended for fragile items, only for durable items such as books, tinned foods etc. Ideal for packing files, books and heavy kitchen items. These boxes are new and come in white. Combine these boxes with either our PVC Solvent Tape or our Super Strong Aaltonen tape. For weights and dimensions please click additional information.