1Highquality terahertz materials, polished appearance, and skinfriendly and comfortable hand feeling. 2Tighten the skin, reduce wrinkles and fine lines, eliminate puffiness, and make your facial skin healthier. 3When using skin care products, massage the face with a roller to accelerate the absorption of the mask or serum. 4It can be used after putting it in the refrigerator, which is very fast and convenient. 5Double-ended, suitable for different parts of the face, can massage the forehead, cheeks, chin, neck, eyes and nose.