The patent pending tri-level bristles don’t have balls on the ends to catch knotty hair. The longer bristles penetrate hair, while the shorter rows act like tiny fingers that gently unravel knots. Detangles and unravels hair without damaging the hair’s cuticle or pulling hair Works on all types of hair: straight, wavy/curly, multi-cultural, wigs and extensions Bristles can be easily removed from the base for thorough disinfecting and are dishwasher safe Great for those that prefer a handle and want the same Knot Genie experience