Relieve stiffness in facial muscles. Please apply cream or oil before use. Material: White buffalo horn - Size: Approximately 6*7cm White buffalo horn is smooth and has a beautiful color, making it the highest rank among buffalo horns and is used in traditional Chinese medicine. No two pieces have the same pattern; each is unique. Buffalo horn is a natural material, and its main component is protein, which is gentler on human skin than plastic or metal. - Less likely to generate static electricity. As it is a natural material, it has unique patterns, grains, and cracks. Do not place it in a place with high temperature, high humidity, or dryness. When not in use, apply oil and store it in a zip-lock bag. Thank you for viewing.