The file 'Arthritis Assist – Button Assist, Zipper Pull, Key Assist, And Bag Handle 3D Printer Model' is (stl) file type, size is 126.5KB.
I created these for a contest last September (2014) and thought I would share them here too. I have printed and tested them and they seem to work pretty well. The zipper pull took many iterations to get to a functional state. If you use strong material with 100% fill it will last a long time.
You can see a video of all the devices here:
https://www.youtube.com/watch?v=IK19hcsD0wQ
3D_Comfort.stl | 349.5KB |