Stacking of nests for pharmaceutical containers

A first structure comprising:

• a. a first plurality of receptacles, wherein each receptacle of the first plurality of receptacles
• i. is adapted and arranged for accommodating a container;
• ii. has a first end and a further end opposite the first end,
• iii. comprises a sidewall that at least partially encloses an interior of the receptacle;
• iv. comprises at least one protrusion extending into the interior of the receptacle;
• wherein
• the first structure is adapted and arranged such that when the first structure is arranged in contact with a further structure comprising a further plurality of receptacles, wherein each receptacle of the further plurality of receptacles
• i. is adapted and arranged for accommodating a container,
• ii. has a first end and a further end opposite the first end,
• iii. comprises a sidewall that at least partially encloses an interior of the receptacle,
• iv. comprises at least one protrusion extending into the interior of the receptacle;
• at least one of the following applies:
• I. 30% or less of the receptacles, forming part of the first plurality of receptacles, are in contact with the protrusions of the further plurality of receptacles;
• II. 30% or less of the receptacles, forming part of the further plurality of receptacles, are in contact with the protrusions of the first plurality of receptacles.