I have been using this report book since 2020- I replace it every couple of years bc if certain colors tend to stain the pages and it ends up looking dingy- which u would think I would remember which colors do that, but I never do. Black, blue, and turquoise always work and always wipe clean. . HOWEVER, that does not deter me from purchasing them over and over! I am a travel nurse which means I float all of the time and I love having a report sheet that is the same every time! It fits perfectly in any scrubs top pocket….and saves paper. I always get extra blank sheets in case I need to write a more lengthy report or to take notes throughout the day. I would recommend this to anyone who values organization and routine!