Difference between different types of layers in hair?

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Jan 23, 2014

Pixiee H.

Can someone please explain the difference between concave, convex, circle, and square layers? Which one gives the most volume at the crown? Pictures would be helpful too~

Jan 23, 2014

Hannah K.

Http://www.hairfinder.com/hair4/layers.htm this should be helpful, hopefully :)