16 Segment Black
This free online timer is a simple, but techie, 3 hours and 30 minutes timer features a black 16 segment LCD on a simple white background.
Great for helping students stay focused while they're working indendently or really any time that you need some help with focus.
Pencils & Textbooks
9 Pin Green
VT323 Digital Timer - Unmellow Yellow
Digital Clock - Bright Green
16 Segment Blue
9 Pin Yellow