I can take one one for ya but all I did was rip of the pre cut foam. The case comes with 4 pieces of foam. A top piece that you can see in the lid, 2 pieces with pre cut cubes, and a thin bottom piece.
The 2 middle pices have a 1 inch section around the outside that's not cut.
Just take out the pre cut part so you have 2 rings of foam, glue them together and your all see. So easy and simple you don't even need a knife