A real semi-hard texture; Good for 2.5 cuts up to Wolfing Stadium. Big Train; Penetrates ALL layers of hair. The TP600 is firmer than a medium brush and softer than a stiff brush, but still very firm. The CURVE conforms to the shape of your head for better grip, better traction and more coverage, which means faster results! The TIP TIP isolates the crown of hairs (whorl or hive) for better development.