The D3 Original Styler is Denman's classic 7-row styling brush, built for defining curls on wet hair rather than general detangling. Seven rows of round-ended nylon pins sit closely spaced on a half-round, anti-static rubber pad, the combination Denman markets as its original curl-defining design: the pad's curve and grip are meant to hold a section of hair in place through a blow-dryer pass, while the tightly spaced pins separate curls into distinct sections instead of smoothing them flat.
The 7-row size is Denman's recommendation for short-to-medium length curly, coily, and wavy hair; its 9-row sibling, the D4, is aimed at longer or denser curls that need extra pin coverage. A common technique with the D3 is shingling, twisting the brush through a wet section of hair to coil it into a defined ringlet. The pad and pin unit lifts out of the handle for washing in warm, soapy water.