Number line from -20 to 100.

https://www.amazon.com/ETA-hand2mind-Number-Line-20/dp/B016DV04XW?ref_=fsclp_pl_dp_7

From Math Specialist Risa Wolfson: This number line is perfect for showing students a visual representation of positive and negative numbers. This is a typical item in most math classrooms, and those students coming into the Math Learning Center would greatly benefit. I had to make my own this year using Post-It Notes and index cards. It worked, but I would like a finished product to display as well.