If you are a parent in the Douglas County School District, specifically Heritage School in Highlands Ranch, CO, then you've been asked to protect your own kids' Chromebook. For a "discount" price of $45, you can put a gumdrop case on the Chromebooks. For those of you who aren't math teachers, that about 1/4 of the price of a new Chromebook.
If you are looking to protect the Chromebook's flexible screen AND get a whiteboard at about 1/10th the price of a new Chromebook, then the Cranium by Educabana is a better choice. It's made of PVC and aluminum. More importantly, unlike other options, it's permanent. Kids want covers off, whether they are soft or gummy or hard plastic. The Cranium stays on. It does it's job for less.
And if you're looking for a classroom set or a model not listed, contact Educabana directly.
Brian Jaeger writes columns for respectable websites all over the kingdom.