Just a little "box" with a slot on the top, to insert used blades into between batch tossings. The bottom of the tin pops off, allowing razors to fall out when you need them to.
If you're worried about the safety disposing of the blades, we're with you. Never throw a "naked" blade in the trash. They must be thrown away, sadly, but they must also be wrapped up to avoid cutting your family or sanitation workers. Bundle used blades in some old newspaper or other unwanted bag or material and tape shut before tossing.
It's a great idea to wash this vessel after each empty.