I'm a swim instructor so chlorine does a number to my hair. I wanted a way to add fun colors to my hair without having to mess with bleach on my already damaged hair. These microbead extensions are perfect for just that! I can easily change colors without the mess or worry. I have had these in for a week in chlorinated water and the color is still almost as vibrant as the day I got them, especially the blue! I will be placing another order soon!