Clip-on bangs is a partial wig that you attach to your own hair using clips. There are plenty of styles out there, but the ones I picked is a simple thick one-length piece that reaches below my eyebrows. Here is the piece on a wighead:
And lying flat on the floor. You can see in the second photo the clip that is used to attach the bangs to your head.
Here I am wearing the bangs. It attaches in seconds, and you just need to style it a bit after you clip it on.
Here is how the top looks like. It can look a bit unnatural, but a cute headband or scarf will solve that problem.
The bangs are really useful for changing your hairstyle quickly, and the hair is quite natural-looking. KKCenter.com offers plenty of colors to match your hair color, or you can choose a contrasting color for a daring look!
Of course, like any wigs, you can style and cut it as you please. After taking the above photos, I trimmed mine much shorter to get Betty Page bangs. :)