I was working on First aid with my Webelos den in the fall. At Walmart I found small J&J first aid kits for 94 cents. The white plastic box was just about the right size for a pocket kit. It contained a few bandages and wipes and had plenty of room left to add things like you have listed. It makes a great starting point for building a pocket size personal kit for cub scouts.

I do not have one in front of me right now, but I would guess the white plastic box is about 1 inch or so thick and about 3-4 inches wide.

I just saw the same boxes at the dollar store , but they were red and had Spiderman bandages in them.