Hello :) I've used the gorgeous new Delightful Decadence Square and Hexagon Gift Boxes (both sets) to make 2 beautiful boxes and I've also shown you how to use the dies to make cards.
You can see all of this in my video here
Inner box- 9.5cm square (3.74")
Hexagon - 14.5cm at widest point x 12cm (5.5" x 0.8")
You can buy the die sets here -
USA - https://shrsl.com/3wq8z