I usually don't have a problem with highlighting, but the tiny "windows" are still cool

The window is so cute and practical for people who want to see what they are highlighting

These are awesome - the clear little window lets you see the text youŕe highlighting

Highly recommend the window is useful for highlighting as it makes highlighting more precise.

The window is not worth mentioning.

Love the window too.

The window on the highlighter side is so helpful and helps when you need to know when a line ends.

The "window" on the tip is very functional as well as the fine tip but because of the color I would prefer the mildliners over these.

The highlighter/pen set is wonderful, I love the clear window and being able to see what I am highlighting however as I stated previously

The window wasn't as helpful as I thought it would be -- turns out trying to look through a window half the size of my pinky nail was just frustrating

I love the little view finder window

Great highlighters, and I love the window to view text while highlighting

The highlighters themselves are nice, the window at the broad end is convenient and the fine tip is good for precision

Nice colors and useable window

The window is very clear, which was a concern for me

Nice light colors, The window is great for seeing what your highlighting.

Haven't had any problems with ink bleed and the dual ended tips and the window come in really handy.

The window in the wide highlighter tip is sometimes useful, sometimes not - I'm not used to having it there, but it's starting to grow on me

The window is really helpful for making lines that are the perfect width, and the fine tip is SUPER fine (even finer than the mildliners)