The waterdrop-shaped comb teeth are painless and the wooden handle is very familiar to the hand. Material: Green sandalwood (Mandarin); Weight: 67g (-5g) [With Japanese instruction manual] Size: Length: 18.5cm Comb width: 4.5cm Pattern thickness: 1.5cm Naturally friendly natural ebony wood It is made of and has a refreshing fragrance, so it is comfortable to use. [One year warranty] This product comes with a manufacturer's 12-month warranty. At first it is yellowish brown, but when it is used, it becomes darker and changes to a greenish color over time. Due to exposure to sunlight and air, it eventually becomes fresh green. Natural wood combs are less prone to static electricity, and are gentle on the hair and fit very well into your hands. Use this hair comb to massage the scalp and nerves and improve blood flow. * Caution: Impact caused by dropping may cause damage to the wooden comb and cause cracks. Do not drop the product from high places or hit it against hard objects (concrete, floor).