Confirmed measurements of inner cylinder tube, outer box and card insert are as follows:

Cylinder Tube:
28cm tall by 12cm wide (diameter).
Laid flat, print design will be 28cm tall x 37.68cm wide.

White Outer Rectangular Box:
28.5cm tall by 12.5cm wide

Card Insert:
9.1cm x 5.5cm

Please see uploaded sketch images for more details on dimensions. Thanks

Please see uploaded sketch images for more details on dimensions. Thanks

Please note some updates to the Project Brief.
We encourage you to read it, but in summary -
In addition to confirmed measurements, we have also made a decision to go with a fairly basic outer box. The outer box is purely for protection of the tube and to make storage of individual units easier. It is unlikely the buyer will retain the outer box.
So the outer box will have a basic design, we are thinking just the logo and a barcode.
The inner cylinder tube, which contains the cocktail set, will be retained by the buyer to store the product. So the cylinder will have full, detailed branding.
Any questions please let us know.
Thanks,
Bart