10 air freight containers type AAX. These are used on freight aircraft of types A300F, B747F, B767F, B777F, DC-10F, L1011F and MD11F. These can carry 14 cubic metres of freight, weighing almost 6,000 kgs. They are used by companies like DHL for example.
If you need more of this type of container, have a look at this
economy set of 50 AAX ULD's.