Reading blinders for e-reader

This is a blinder for the Kobo Aura HD e-reader. If you have a different e-reader (for instance a Kindle), here's the Fusion 360 model if you want to modify the dimensions, make holes for buttons, etc.: https://a360.co/2JgG6yZ

If the room is dark, then e-readers can be quite bright, even on the lowest setting. If there's someone next to you trying to sleep, this can be used to reduce the amount of light hitting their face, while still letting you read.

It also rests comfortably on your belly when lying down.

In case you fall asleep while reading, and the e-reader hits your face, the left and right blinder has a blunt cylindrical edge.

I guess another possible use could be to provide some privacy in a public space.

It fits quite tightly with the Kobo Aura HD, so you could maybe add another millimeter to the slot where the e-reader slides in if you want to. Then again, it would be annoying if it kept sliding out as well, so a friction fit is a good thing here.