10-inch propeller case

So I had an unfortunate experience where I have stuffed loose propellers in my backpack and had one of them bent and break immediately after takeoff which crashed my drone. I decided that something had to be done, but the only cases I found where for 5-inch props. So there is my take on this concept, but for 10 inches.
A case for 4 10-inch propellers, 2 cw and 2 ccw. Can be vertically extended to fit more than 4, with each propeller being 10mm high, and each switch from cw to ccw and back requiring additional 5mm. 3 latches slip on from above or side and hold on pretty well. 1 will hold, but at least 2 recommended to be safe.
No supports required, but brims for latches are recommended.