1 custom made box protector for 4K Ultra HD + Gallery Book releases.    The standard 4K Ultra HD's fit in the standard Blu-Ray protectors but these fit the thicker ones that included the Gallery Book.   There is a chance these don't fit every one out there so check your dimensions! 

These are 6 7/8 x 5 9/16 x 13/16 or roughly 17.4 x 14.1 x 2cm.

These may fit some other things.  We have already found that they are a pretty good, but not perfect, fit for the Switch Witcher game and in another picture you will see that it is a decent fit for an Arrow Films release.  There are many Arrow sizes so definitely check your dimensions before buying. 

Removable Peel Film

Crystal Clear

Custom Size