Material: This pocket compass is made of high-quality pure copper shell, which is durable and durable. Luminous function: This navigation compass can emit light after absorbing light, making it suitable for use during the day and night. Note: Without exposure, there is no luminous effect. Accurate positioning: Identify the direction and fix the position at any time and place, giving you the correct direction. Portable size: The diameter of this small compass is 4.9 centimeters, making it small and convenient to carry. Multi functional: Perfect for hiking, camping, orienteering, and other outdoor activities. A perfect outdoor navigation tool or collectible gift for children, family, and friends.