Extra-wide tined hair combs, widely spaced. Designed especially for detangling but also a very different kind of stimulation, exfoliation, scalp-scritching, dry or oil-use, and flat-comb scalp rubbing. Curlyhaireds adore these.
3-5 TPI's adds shine, strength, stimulation exfoliation fortification, zero-drag functionality, and circulation leading to better stronger growth.The tines (what teeth go through the hair)are size-rated (hence sections they are sorted into)and not thickness rated but are relative to combs thickness.The X's are the comb's thicknesses noticeably but still approximately that many more times more than a slender specific to that model of comb. Example 4x is a much thicker and heavier comb than a 1x.