10 air freight containers type AAA. These are used on freight aircraft of types A300F, B707F, B727F, B737F, B747F, B757, B767F, DC-8F, DC-10F, L1011F and MD11F. They can carry 10 cubic metres of freight, weighing almost 6,000 kgs. These are used by companies like DHL for example.
If you need more of this type of container, then have a look at
this economy set of 50 AAA ULD's.