The 6x6 case (Internal dimensions: 6.3" x 6.3" x 7.5") typically fits (1) 6-inch BLDBLZ or about (3-5) 3-inch BLDBLZ figures.
The 6x12 case (Internal dimensions: 12.6" x 6.3" x 7.5") typically fits (2–3) 6-inch BLDBLZ or about (7-10) 3-inch BLDBLZ figures.
*Note: Because BLDBLZ figures vary in size and everyone has their own display style, capacity numbers are provided as a range.