Textbooks are expensive and when a student marks them up with highlighters while studying, it significantly affects their resale value at the end of the year. The solution is to use this cool new Fading Highlighter from Quirky. This innovative highlighter uses classic yellow ink that fades away completely without a trace after five months. So highlight as much as you want and then sell the textbook back just like new.
Fading Highlighter - Fades Without a Trace in 5 Months