The natural materials used to make the frames are special woods, animal horns and enamel materials, the most representative of which is Hawksbill Sea Turtle. The Hawksbill Sea Turtle is a shell of the sea turtle that is produced in the tropics and subtropical coastal areas. Due to the scarcity of raw materials, it is expensive and belongs to high-end frames, which is very popular among middle-aged men. Hawksbill Sea Turtle has a unique amber luster, which is characterized by light weight, durability, preservation value, easy processing and polishing, thermoplastic, and no irritation to the skin. The quality of Hawksbill Sea Turtle is generally in terms of color. The lighter the color, the higher the price. When using maintenance, it is not possible to use ultrasonic cleaning, otherwise it will be tarnished and tarnished.