Reading Ruler
thingiverse
A Dynamic Ruler with a Sliding Window for Concealment and Revelation of Text for Individuals with Cognitive or Reading Difficulty Due to Distractions or Difficulty Focusing. https://www.tinkercad.com/things/5aHX2tOIxtv-readingruler/edit
Download Model from thingiverse
With this file you will be able to print Reading Ruler with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Reading Ruler.