SAD Guidelines - E31
Box 31: Packages and description of goods; Marks and numbers - Container No(s) - Number and kind
Enter the marks, numbers, quantity and kind of packages or, in the case of unpackaged goods, enter the number of such goods covered by the declaration together with the particulars needed to identify them. The description of the goods means the normal trade description. Where box 33 Commodity Code is to be completed, the description must be precise enough to allow the goods to be classified. This box must also contain the particulars required by any specific legislation. Using the relevant Community code from Annex 38, enter the kind of the packages.
If containers are used, their identifying marks should also be entered in this box.