You will feel the difference the first time you use the Vibrating Hair Brush! Hair stylist and dermatologists agree with healthy hair, massage your scalp daily. The unique, vibrasonic action of the Hair Massager makes your scalp tingle with increased circulation so hair stay its health Description: Natural rubber pad and gentle nylo9n tipped bristles of the Comb Massager Two selections of massaging intensity Massager design for use easily and conveniently with two pcs of batteries (not included) Increased blood circulation helps remove toxins and micropollutants from the hair cell matrix Great styling brush and detangler, can be used on wet or dry hair, adds volume to your hair ad reduces hair breakages Use the back as a massager for the rest of the body, relaxes sore and tense neck and shoulders relieving stress, invigorates the scalp! Size: 10 1/2" x 1 1/2" x 2 3/4" Weight: 134g