Detangling brush. Or, if you want a branded example, a Tangle Teaser. Essentially, a brush that looks like this:
No handle. Lots of bristles. Mine has a fully rounded back instead of flat, but it's the same idea - holding it directly in your hand instead of having a handle. I find that it works well on my hair (which is thick, wavy and fluffy in texture). However, what type of brush works best for your hair is dependent on the kind of hair you have, but personally I like detangling brushes for my hair.
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24. Possibly B.A.P.