1High quality ABS material, durable, odorless and comfortable to use 2No harm to skin and scalp, free you from fatigue and a busy day 3Massage the scalp, accelerate blood circulation, relieve stress and prevent hair loss 4Heat resistant and corrosion resistant, ideal for professional salon and home use 5Ergonomic design, comfortable to grip. Round comb teeth, will not make hair tangled, leave the hair more smooth