Cap For rOtring Lead Refill

I go through a lot of mechanical pencil lead - specifically with my rOtring Pro pencils so I keep extra lead on hand. One thing that has irritated me is that I kept grabbing the wrong container cause there is no visible indication that its 0.7 or 0.5. So I decided to model my own cap and print it in a different color and now its cleaner in my desks/bags where I keep these things. I am sharing the STL and SketchUp file I used to model it just in case you wanted to modify it for a different refill container or add any other details you might want to change. I imagine this is a very niche thing with a specific use case but that's what my 3D printing journey has led me to, pun intended!