1 custom made box protector that fits most but not all Power Rangers 2 packs.  There is at least one that we know of that may have been a SDCC release that is larger and will not fit!   

The size of the boxes that fit in these protectors is 12 1/8 x 9 1/8 x 2 3/4 inches or roughly 30.8 x 23.1 x 7cm. 

14mil Acid Free PET Plastic

Removable Peel Film