Sega Master System cartridge organizer

I have a significant number or SMS cartridges in my retro collection so I decided to organize them. These designs are meant to be used with a standard photo box. Four of the 1x5 and Two of the 1x2 (coming soon) will completely fill a standard photo box designed for 4" x 6" prints (24 carts in total).

Due to the dimensions of the SMS carts they are inserted into the organizers on their side, unlike the Atari 2600 and VIC20 carts.