enjoy it :p
Teachers! Did you use this instructable in your classroom?
Add a Teacher Note to share how you incorporated it into your lesson.
Step 1: The Material
mini roll on(with plastic ball)
double sided ducktape
Step 2: Mini Trackball
cut the neck mini roll on
Step 3: Attachment
pairs of duct tape in the mouse
plug the mini roll on
do not forget to adjust before installing mini trackball
Step 4: How to Use
use the mouse finger a little more comfortable for these systems
Participated in the
Before and After Contest 2016