This model is designed to help both children and adults alike.
I have Irlen Syndrome and have always struggled to read as a result. This bookmark is designed to assist people with similar conditions by blocking out surrounding words and lines of text in hopes of focusing the brains attention on desired text and minimising distortions when reading.
This tool can be used alongside coloured filter sheets or by itself. It has been designed thin enough to be durable but also bend to the curve of the page, even when printed using more rigid plastics.
Even if you don't struggle to read, you can still print this cute koala bookmark to help you keep track of your pages!
From my Cults3D page